Seminar Schedule

Our group meetingsÌýtake place in our lab, room MC6334,ÌýinÌýthe Mathematics & Computer Building (MC). If you are an upcoming student speaker and would like some advice on how to prepare a presentation, seeÌýthe section on communication skills in my handbook for new grad students .Ìý

Winter 2024

  • Feb. 9 (Fri), 11:00am, Prof. Carl Caves (University of New Mexico)
    100 years after Heisenberg: Discovering the world of simultaneous measurements of non-commuting observables.
    Live in MC6334 and on .

Fall 2023

  • Nov. 15 (Wed), 3:00pm, Evan Peters
    Learning and Entanglement
    Live in MC6334 and on

  • November 3 (Fri), 11am, Dr. Aidan Chatwin-Davies (OIST, Okinawa)
    Holographic Screen Sequestration
    Live in MC6334 and on

  • October 30, (Mon), 12:00pm, Alexandra Kirillova (IQC)
    Optimizing Satellite Quantum Key Distribution
    Live in MC6334 and also on .

  • October 23, (Mon), 12:00pm, Dr. Michael. F. Wondrak (Radboud University, The Netherlands)
    Gravitational Pair Production and Black Hole Evaporation
    (Based on the recent PRL: https://arxiv.org/abs/2305.18521)
    Live in MC6334 and also on .

  • October 16, (Mon), 10:00am, AK talks at Center of Applied Space Technology and Microgravity (ZARM), University of Bremen
    Correlations, representations and the emergence of spacetime
    User: gravitv, pwd: Gab=8piG/c^4Tab

  • October 5, (Thu), 11:00am, AK talks in the Quantum Foundations Seminar at Perimeter Institute
    On the Role of Representations in Foundations, Quantum Gravity and AI & Consciousness
    .

Spring/Summer 2023

  • June 20, (Tue), 2:30pm, Arsalan Motamedi (IQC)Ìý
    On sampling in a quantum context

Winter 2023

  • Apr 5Ìý(Wed), 1:00pm, Prof.ÌýLorenzo FatibeneÌý(UniversityÌýof Torino, Italy)Ìý
    Building theories out of thin air:ÌýThe mathematical structure of relativistic theories
    Live in the lab (MC6334) and on Zoom, .

Fall 2022

  • Dec 6 (Tue), 11:00am, Prof. Pooya Ronagh (IQC)Ìý
    Gibbs Sampling of Periodic Potentials on a Quantum Computer

  • Dec 1 (Thu), 11:00am, Prof. Robert Martin (Univ. of Manitoba)
    An introduction to Non-commutative Function Theory

  • Nov 24 (Thu), 4:00pm, Dr. Nayeli Rodriguez Briones (Berkeley)
    Activation of Strong Local Passive States with Quantum Energy Teleportation Protocols

  • Nov 17 (Thu), 3:30pm, Prof. John Klauder (Univ. of Florida)
    Advanced quantum mechanical methods.

  • Nov 10 (Thu), 3:30pm, Dr. Ali Mahmoud
    On the mathematics of quantum computing

  • Nov 3 (Thu), 11am, Prof. John Klauder (Univ. of Florida)
    Quantization meets the universe. The recording is Ìý±Ê²¹²õ²õ³¦´Ç»å±ð:Ìý+°Â4¾±³Ü°Õ±Ê8

  • Oct 28 (Fri), 4:30pm, Prof. Fabio Scardigli (Univ.Ìýof Milano)
    Bekenstein bound and uncertainty relations

  • Oct 24Ìý(Mon),Ìý10:00am, Evan Peters
    Generalization despite overfitting in quantum machine learningÌý

  • Oct 21Ìý(Fri), 2:00pm, Evan Peters
    Using correlated auxilliary noise in classical and quantum machine learning (II)

  • OctÌý14 (Fri), 2:00pm, Evan Peters
    Using correlated auxilliary noise in classical and quantum machine learning (I)

  • Oct 5 (Wed), 2:00pm, Dr. Aidan Chatwin-Davies (UBC)
    Error correction and superselectionÌý

  • SepÌý8 (Thu), 4:00pm, Einar Gabbassov
    Discretized adiabatic quantum computing II

  • SepÌý1 (Thu), 4:00pm, Einar Gabbassov
    Discretized adiabatic quantum computing I

Spring/SummerÌý2022

  • Aug. 31 (Wed), 2:00pm, Sky Room, PI,ÌýProf. Masahiro Hotta (Tohoku University, Japan)
    How to derive quantum mechanics for a two-level spin by Stern-Gerlach experiments, and its extension to multi-level systems

  • June 15Ìý(Wed),Ìý11:30am, Maria Papageorgiou,Ìýat PI (room TBA) andÌýonÌý.
    Quantum measurements in relativistic spacetime

  • May 31Ìý(Tue),Ìý2pm, Dr. Marcus Reitz (Jagiellonian Univ,ÌýPoland), in our lab, MC6334 (or in MC5479 if our lab is too full) and onÌý:
    Generalised spectral dimensionsÌýin non-perturbativeÌýquantum gravity

  • May 10Ìý(Tue),Ìý2pm, Dr. Ningping Cao (IQC) ()
    Combined numerical ranges of observables and quantum information

  • May 4 (Wed),Ìý2pm, Matheus Zambianco (Sao Paulo) ()
    2 topics: Observer dependent entanglement / Quantum friction
    Ìý

WinterÌý2022

  • February 16 (Wed), 1pm, Dr. Flaminia Giacomini (PI) ()

  • February 7 (Mon), 2pm, Dr. (Berkeley)Ìý
    Cooling quantum systems with quantum information processing

  • January 28 (Fri), 1:30pm, Prof. John Klauder (Univ. of Florida) ()
    Affine Quantization and Gravity

  • January 26 (Wed), 9pm, Dr. Jason Pye (UW and University of Western Australia) (, pwd: 711529)
    On Bandlimitation in Quantum Field Theory

Spring/Summer 2021

  • June 21 (Mon), 10am, Maria Papageorgiou ()
    Ph.D. Lecture 1: Quantum measurement in Relativistic Quantum Information

  • June 23Ìý(Wed), 12pm, Maria Papageorgiou ()
    Ph.D. Lecture 2:ÌýDetector models in Quantum Field Theory: the localization problemÌýÌý

  • June 30Ìý(Wed), 12pm, Maria Papageorgiou ()
    Ph.D. Lecture 3:ÌýDetector models in Quantum Field Theory: frictionsÌýwith relativistic causality
    Ìý

Fall 2020

  • Oct 13 (Tue), 11am, Erickson TjoaÌý
    Entanglement harvesting in collapsing shell spacetime and a new computational method it inspired
  • Sep. 22Ìý(Tue), 11am, Aharon Brodutch (CQIQC, University of Toronto)
    Do qubits dream of entangled sheep?
  • Sep 16 (Wed), 4pm, inÌýPI series, Eugene Tang (CalTech)
    The ghost in the radiation: Robust encodings of the black hole interior
  • Sep 8 (Tue), 2pm, Basel Jayyusi ()
    Geometric interpretation of separation of variables in Hamilton Jacobi equationsÌý
  • Sep 2Ìý(Wed), 11am, Jason PyeÌý ()
    Lectures on Sampling Theory in Quantum Field Theory II (Lorentzian case)
  • Sep 1Ìý(Tue), 11am, Jason PyeÌý ()
    Lectures on Sampling Theory in Quantum Field Theory I (Euclidean case)

Spring/Summer 2020

  • Aug 19 (Wed), 11am, Jason PyeÌý (
    Relativity, Particle localizability and Entanglement
  • May 19 (Tue), 10am, Maria, Nadine, Achim, Richard (joint Edu-Achim group event)
    Miniworkshop on the light-matter interaction
    The recording is Ìý

Winter 2020

  • April 21 (Tue), 2pm, Richard Lopp, Dan Grimmer [The video recording is ]
    Shape, Geometry and Quantum Optics:Ìý Are Optical Fibers Really One Dimensional?Ìý
  • March 31Ìý(Tue), 11am, Raphael Abrahao (University of Ottawa) []
    Scaling Boson sampling experiments and quantum metrology with photon counting
  • March 25 (Wed), 2pm, Navya Gupta [postponed]
    Disentangeling entanglement
  • March 17 (Tue), 11am, Prof. Roger MelkoÌý Ìý[postponed]
    Reconstructing Wave Functions with Unsupervised Learning
  • Feb 11 (Tue), 11am, Dr. Alvaro Alhambra
    Revivals imply quantum many-body scars
  • Feb 4 (Tue), 11am, Prof. YidunÌýWan (Fudan University, Shanghai)
    Intro to the Experimental Probing of Topological Order and Its Breakdown via Modular Matrices
  • Jan 30 (Thu), 2:30pm in MC5501Ìý(Colloquium), AK
    Superoscillations: Faster than Fourier
  • Jan 28 (Tue), 11am, Aidan Chatwin-Davies (University of Leuven, Belgium)
    Bulk reconstruction beyond the entanglement wedge
  • Jan 21Ìý(Tue), 11am, Juan Cayuso
    Exploration of the Universe at the largest possible scales.Ìý
  • Jan 15 (Wed), 11am, Nicholas Funai
    Numerical obsolescence of RWA in 21st century cavities
  • Jan 10 (Fri), 12pm, Rena Kaya
    Quantum Amplifiers: From ideal to immaculate
  • Jan 7 (Tue), 11am, Adam Lewis
    Quantum computing with machine learning controlled quantum stuff
    Ìý

Fall 2019

  • Dec 16 (Mon), 11am, Ali Mahmoud
    On the asymptotics of diagrams occurring in interacting quantum field theories.
  • Dec 10 (Tue), 11am, Eugene Tang (CalTech)
    Robust encodings of the black hole interior
  • Dec. 4 (Wed), 11am, Adam Lewis
    Lattice simulations of Hartle Hawking vacua
  • Nov. 26 (Tue), 1pm, Aaron Voelker
    Energy-efficient dynamic computations on spiking neuromorphic hardware
  • Nov 19 (Tue) 10am, Marcel GolzÌý(C&O, UW and Humboldt University Berlin)
    Parametric Feynman integrals for gauge theories and their combinatorics
  • Nov 18 (Mon) 11am, Tobias Fritz (PI)Ìý
    Resource efficiency in thermodynamics and characterizations of entropy
  • Nov. 5 (Tue) 10am, Ramit Dey (IACS, India)
    Signature of near horizon modifications in holography
  • Oct. 30 (Wed) in room QNC1201 at the IQC (joint seminar with Edu's group), 2:30pm, AK
    Superoscillations: theory and applications
  • Oct. 23 (Wed) 11am, Dan Grimmer, Irene Melgarejo
    Machine Learning Quantum Field Theory
  • Oct. 8 (Tue) 11am, Chunchong "Rufus" Ni
    Seeing the unseeable: How the Event Horizon Telescope unmasks supermassive black holesÌýÌý
  • Sep. 18Ìý(Wed) 12:00pm, Koji Yamaguchi (Tohoku University, Sendai, Japan)
    A bound on quantum signal to noise ratios
  • Sep. 4Ìý(Wed) 11:00am, Parth Girdhar (Univ. of Sydney, Australia)
    Probing modified commutation relations via quantum noise

Summer 2019

  • Aug. 28 (Wed) 3pm, Jessica Pointing (Stanford)
    Opportunities with near-term quantum computersÌý
  • Aug. 22 (Thu) 10:30am, Prof. Giovanni Acampora (Univ. of Napoli, Italy)
    Computational intelligence: an introduction and a quantum vision
  • July 16 (Tue) 3:30pm, Sky room at PI, Prof. John Klauder (Univ. of Florida)
    The real quantum gravity
  • JulyÌý16Ìý(Tue) 11am (MC6334), Dimitris Moustos (Patras Universty, Greece)
    Thermality in the Unruh effect

WinterÌý2019

(AK is on sabbatical)

  • Jan. 30 (Wed) 2pm, Ding Jia
    Should one geometry appear only once in the path integral for gravity?
  • Jan. 8Ìý(Tue) 12:00pm, in Room MC6486, Prof. Silke WeinfurtnerÌý(University of Nottingham)
    Fluid dynamics meets gravity: analogue black holes in the lab

Fall 2018

(AK is on sabbatical)

  • Dec. 5 (Wed) 1:00pm,ÌýJose De Ramón Rivera
  • Oct. 15 (Mon) 4:00pm, Ingo Roth (former group member, now at Freie UniÌýBerlin)
    Introduction to compressed sensing for classical and quantum signals

Spring / Summer 2018

  • Aug. 29 (Wed) 11:00am, QNC1201, Doreen Fraser (Philosophy, UW)
    Analogies in quantum theories
  • Aug. 20Ìý(Mon) 11:00am, Turner Lee Silverthorne
    ​Tsirelson’s Problem and The Word Problem
  • Aug. 16Ìý(Thu) 12:00pm, NiticaÌýSakharwade
    Toy model for quantum causal structures
  • Aug. 8Ìý(Wed)Ìý1:00pmÌýDr. Robert Martin
    Finite dilations of quantum channels
  • Aug. 1Ìý(Wed) 1:00pm, Prof. Karen Yeats (C&O,ÌýU. À¶Ý®ÊÓƵ)
    Field diffeomorphisms in QFT
  • July 26 (Thu) 1:00pm, Location: QNC1501, Esteban Castro Ruiz (University of Vienna)
    Dynamics of Quantum Causal Structures
    (this is a joint seminar with the groups of Robb Mann and Eduardo Martin-Martinez)
  • July 20 (Fri) 3:00pm, Jason Pye and Dr. Marco Letizia
    Test runs of theirÌýtalks at the ICMP conference
  • July 19 (Thu) 3:00pm, Location: QNC1501,ÌýFlaminia Giacomini (University of Vienna)
    Spin measurementÌýin relativistic quantum reference frames
    (this is a joint seminar with the groups of Robb Mann and Eduardo Martin-Martinez)
  • July 19 (Thu) 10:30-11:55am, QNC0101,ÌýSteven Heidel (RigettiÌýComputing) and Guillaume Verdon
    Controlling a Quantum Computer with Code (Steven) andÌý

    A Universal Training Algorithm for Quantum Deep Learning (Guillaume)

  • July 18 (Wed) 1:00pm, Atmn Patel
    Test run of his talk at the ICMP conference
  • July 10 (Tue) 1:00pm, Maria QuadeerÌý(Univ. of Technology, Sydney)
    Minimax quantum state estimation under Bregman divergence
  • July 4 (Wed) 12:30pm, Nicholas BornmanÌý(University of the Witwatersrand)
    Ghosts in Optics
  • June 15 (Fri) 2:00pm in QNC0101, Prof. Alain TappÌý(Univ.ÌýdeÌýMontreal and Montreal Inst. for Learning Algorithms, MILA)
    The Deep Learning Revolution in Artificial Intelligence, what it means and how you can help
  • June 13 (Wed) 1:00pm, AK
    Stone Age tools forÌýQuantum Gravity?
  • MayÌý23 (Wed) 12:00pm, Dr. Mihai NicaÌý(University of Toronto)
    On the complexity of random functions
  • May 16 (Wed) 12:00pm, (Udacity)Ìý
    Understanding neural networks
  • MayÌý9Ìý(Wed) 1:00pm
    Free-wheeling group discussion
  • May 2 (Wed) 1:00pm, Laura Sberna and Yigit Yargit​​
    Adiabatic Vacuum and the Cosmological Constant Problem

WinterÌý2018

  • Apr. 25 (Wed) 11:00am, Prof. Mairi SakellariadouÌý(King's College London)
    Quantum gravity, cosmological models and the gravitational wave background
  • Apr. 18 (Wed) 1:00pm, Prof. Eduardo Martin-Martinez
    The Unruh effect without thermality
  • Apr. 11 (Wed) 12:00pm, David LaydenÌý(MIT)
    Quantum sensing, noise, and frequency filtering
  • Apr. 10 (Tue) 1:30pm, , David LaydenÌý(MIT)
    Error-corrected quantum sensing
  • Apr. 4 (Wed) 1:00pm, Ding Jia
    Does the Unruh effect actually exist in Nature?
  • Mar. 29 (Thu) 2pm, Alejandro Pozas, ICFO, Barcelona, Spain
    Artificial Intelligence Augmentation:ÌýCatching the wave of Machine Learning to tackle problems in Quantum Information
  • Mar. 28 (Wed) 1:00pm, Nadine Stritzelberger
    1+1 Dimensional inverse spectral geometry
  • Mar. 21 (Wed) 1:00pm, Jason Pye
    Covariant bandlimitation and generalized uncertainty principles
  • Mar. 21 (Wed) 3:30pm, Rob Spekkes, David Schmid (PI)
    Seminar held jointly, in MC6486,Ìýwith Edu's and Robb'sÌýgroups
    Why initial system-environment correlations do not imply the failure of complete positivity
  • Mar.Ìý14 (Wed) 1:00pm,ÌýMaria Papageorgiou
    On the Malament Theorem
  • Mar. 7 (Wed) 1:00pm, Maria Papageorgiou
    Detectors in Spacetime
  • Feb. 28 (Wed) 1:30pm, NiticaÌýSakharwade
    Paradoxical musings: Ravens and the Thimblerig game
  • Feb. 21 (Wed) 1:30pm,ÌýNayeli Azucena Rodriguez-BrionesÌý
    Heat bath algorithmic cooling withÌýelementaryÌýthermal operations
  • Feb. 14Ìý(Wed) 1:30pm, Guillaume Verdon-Akzam
    A quantum algorithm to train neural networks using low-depth circuits
  • Feb. 7 (Wed) 1:30pm, Dr. Marco Letizia
    Quantum matter in quantum space(time)
  • Jan. 31 (Wed), 2pm, Dr. William Donnelly (PI)
    How much quantum information is in a particle's gravitational field?
  • Jan. 22 (Mon), 2:30pm, in room QNC0101, Dr. Elizabeth CrossonÌý(CalTech)
    Quantum annealing vs classical optimization
  • Jan. 18 (Thu), 2:30pm, Prof. Andreas HilfingerÌý(Univ. of Toronto atÌýMississauga)
    Stochastic models in cell biology: how they fail and why we need them
    (This talk will be a colloquium and will take place in room MC5501)
  • Jan. 17 (Wed), 10:30am, in room MC6460, Prof. JormaÌýLouko (University of Nottingham, U.K.)
    Perpetual motion no-go theorem for Lorentz-violating black holes

FallÌý2017Ìý

  • Dec. 6 (Wed), 2pm, Dr. Alvaro Martin Alhambra (PI)
    Entanglement fluctuations
  • Nov. 29 (Wed), 2pm, Aidan Chatwin-Davies (CalTech)
    Hilbert space measures and holography
  • Nov. 22 (Wed), 9am-12pm, Dr. JuergenÌýGerhard (Maplesoft)
    Introduction toÌýcoding with Maple
  • Nov. 20 (Mon), 2pm, Prof. Ali Ghodsi (UW Math)
    Aspects of machine learning
  • Nov. 13 (Mon), 12pm, Dr. Valentina BaccettiÌý(MacquarrieÌýUniversity, Sydney, Australia)
    Effects of black hole radiation: horizon avoidance?
  • Nov. 9 (Thu), 1:30-4:30pm, Dr. Juergen Gerhard (Maplesoft)
    Introduction to symbolic computation with Maple
  • Nov. 8Ìý(Wed), 2pm, AK
    Superoscillations
  • Nov. 1Ìý(Wed), 2pm, Lucas HacklÌý(Penn State)
    Linear growth of the entanglement entropy and the Kolmogorov-Sinai rate
  • Oct. 25 (Wed), 2pm, Dr. Angelika Fertig (PI)
    Quantum Tunneling with a Lorentzian Path Integral
  • Oct. 19Ìý(Thu), 2pm, Nitica Sakharwade
    Bidirectional Teleportation and Dense Coding in the Butterfly network
  • Oct. 11Ìý(Wed), 2pm, Nadine Stritzelberger
    Gravitational closure of matter field equations
  • Oct. 10 (Tue), 1pm, Koji Yamaguchi (Tohoku University, Sendai, Japan)
  • Oct. 4 (Wed),Ìý10:00am,ÌýDr. Katja Ried, (QIC, University ofÌýInnsbruck, Austria)
    Fish, robots and free will: what we can learn by building agents that learn for themselves
  • ​Oct.Ìý2Ìý(Mon),Ìý2pm, GeorgiosÌýStyliarisÌý(USC, Los Angeles)
    Coherence generating power of quantum dephasing processes
  • Sep. 21 (Thu), 1:30pm, MC6486, AK, Nicholas Pun and Rob MartinÌýtalkÌýin theÌýlocal number theory seminar
    Amplified foreshadowing of jumping champions
  • Sep. 20 (Wed), 4pm (Sky Room, PI), AK and Eduardo Martin-Martinez give a talkÌýto PI's PSI students.
    CurrentÌýtopics of research
  • Sep. 14 (Thu), 2pm, GuillaumeÌýVerdon-Akzam
    Qubits from It: Quantum Field Sampling, Compression, and Teleportation
  • Sep. 7 (Thu), 2pm in PI's Sky Room.ÌýAK talks in PI's Cosmology group
    Covariant information-theoretic natural ultraviolet cutoff and the CMBÌý
  • Sep. 1 (Thu), 12pm.Ìý(PI Bistro, 2nd floor) AK talks to PI's new PSI students
    Overview of current topics of researchÌý

Spring / SummerÌý2017

  • Aug. 30 (Wed), 10am, in MC5479 Prof. Luis Garay (Universidad Complutense de Madrid)
    Gravitational-wave echoes from macroscopic quantum gravity effects
  • Aug. 18 (Fri), 10:30am, Dr. Chris Ferrie (U. of Tech. Sydney)
    The Problematization of Randomized Benchmarking
  • July 21 (Fri), 10am, MC6460,ÌýMikhail Panine
    Ph.D. defense
  • JulyÌý12Ìý(Wed),Ìý2pm, Laurel Stephenson-Haskins (UC Santa Cruz)
    Hybrid Inflation and the Spectral Index
  • June 27 (Tue), 2pm, Prof. Adrian LupascuÌý(IQC)
    Introduction to implementations of quantum annealing, and current work
  • June 23 (Fri), 2pm, Dr. Fabio Costa (Univ. of Queensland, Australia)
    A no-go theorem for superpositions of causal order
  • June 22Ìý(Thu), 2pm, Prof. Ghazal GeshnizjaniÌý(UW,PI)
  • June 15 (Thu), 11am, Flaminia GiacominiÌý(Univ. of Vienna, IQOQI))
    Quantum systems as reference frames
  • June 13Ìý(Tue), 12pm, Prof. VijayÌýGanesh (UW-ECE)
    SMT Solvers for Software Engineering and Security
  • June 5 (Mon), 2pm, Aidan Chatwin-DaviesÌý(CalTech)
    A Holographic No-Hair Theorem from the Generalized Second Law for Cosmology
  • May 31Ìý(Wed), 2:00pm, Dr. Daniel Guariento (PI)
    Hamiltonian analysis of the cuscuton

WinterÌý2017

  • April 26 (Wed), 3:30pm, Daniel Grimmer
    OpenÌýdynamics under rapid repeated interaction
  • Mar. 22 (Wed), 11am, QNC0101, Prof. MohammadÌýAnsariÌý(Delft University of Technology, the Netherlands)
    Entropy measurement in quantum systemsÌý
  • Mar. 21 (Tue), 1pm, Maria Papageorgiou
    The 'weight' of entanglement, and the validity limits of semiclassical gravity
  • Mar. 14 (Tue), 2pm, Guillaume Verdon-Akzam
    Maximal entanglement breaking via measurement of quantum fields
  • Mar. 7 (Tue), 12:30pm,ÌýÌý
    Correlation-Enhanced Algorithmic Cooling
  • Feb. 28 (Tue), 2:30pm, Prof. Jose A. Zapata (UNAM, Mexico and UW)
    On holography andÌýgauge degrees of freedom
  • Feb. 22 (Wed), 11am, room MC6486, Prof. Markus AspelmeyerÌý(Univ. of Vienna, Austria)
    Entanglement through Gravity: crazy but how crazy?
  • Feb. 15Ìý(Wed), 2:30pm, Prof. Yidun Wan (FudanÌýUniversity, Shanghai)
    Ground State Degeneracies of Topological Orders on Open Surfaces via Anyon Condensation
  • ​Feb. 14 (Tue), 2pm, Ding Jia
    Natural entanglement cutoff from indefinite causal structure
  • Jan. 31 (Tue), 2:30pm, Prof. Lorenzo Fatibene (Univ. of Turino, Italy)
    Ehlers-Pirani-Schild axiomatics for gravity and extended theories of gravitation
  • Jan. 16 (Mon), 10am, in MC6460, Prof. Niayesh Afshordi (UW, PI)
  • Jan. 16 (Mon), 1pm, MC5501, Prof. Jorma Louko (Univ. of Nottingham, U.K.)
    Smooth and sharp creation of a pointlike source in quantum field theory
  • Jan. 13, (Fri), 2pm, Jason Pye
    Quantum Hamiltonian Complexity, Area Laws and Holography

Fall 2016

  • Dec. 15, (Thu), 2pm, in MC6460, Guillaume Verdon-Akzam
    Master's defense
  • Dec. 13, (Tue), 2pm,
    Quantum Energy Teleportation for Algorithmic Cooling
  • Dec.8, (Thu), 11am, Paul Tiede
    Bow ties in the sky
  • Dec. 7, (Wed.), 2pm, Hau-tieng Wu (Univ. of Toronto)
    When time series analysis meets manifold learningÌý
  • Nov. 24, (Thu), 10am, Ding Jia
    Theories with indefinite causal structure
  • Nov. 17, (Thu), 10am, KiranÌýKhosla (Univ. of Queensland and UW)
    Testing classical channel gravity with quantum clocks
  • Nov. 15, (Tue), 12pm, Jason Pye
    Information-theoretic ultraviolet cutoffs for quantum field theory
  • Nov. 10, (Thu), 10am, Dr.ÌýDennis Raetzel (Univ. of Vienna)
    Gravitational Properties of Light
  • Oct.Ìý27 (Thu), 10am, Sasha Agne (IQC)
    Observation of genuine three-photon interference
  • Oct. 26 (Wed), 2:00pm, Dr. Eric Brown (Institute of Photonic Sciences (ICFO), Barcelona, Spain)
    Gaussian-passivity: practical limitations on quantum energy extraction
  • Oct.Ìý14 (Fri.), Prof. Alexander Gutfraind (U. of Illinois, Chicago and Uptake Technologies)
    • 2-3pm, in QNC1501
      Mathematical Emergencies: Dynamic and Network-based Methods in Infectious Disease Epidemiology
    • 3:30-4:30pm in QNC1501 (Colloquium)
      Math on the frontlines : applications of complex systems methods in
      conflict researchÌý
  • Oct. 11 (Tue), 2pm, Michael Florian WondrakÌý(Frankfurt Institute for Advanced Studies)
    • Unparticle Effects on BlackÌýHoles and the Hydrogen Atom
  • Oct. 6 (Thu), 10am, Markus Mueller (PI, Western University)
    An operational approach to spacetime symmetries: Lorentz transformations from quantum communication
  • Sept. 22 (Thu), 2pm, Emma MacKay
    The effective size of a superconducting qubit

Spring/Summer 2016

  • August 12 (Fri.), 11am, Prof. Ted Jacobson (Univ. of Maryland)
    Is the vacuum maximally entangled?
  • August 11, 10am, MC6486, Jason Pye
    Comprehensive seminar
  • August 10 (Wed.), 11am, Prof. Karen Yeats (Simon Fraser / UW)
    Chord diagrams and Dyson Schwinger equations
  • August 8 (Mon), 9am, Ding Jia, Taylor Zhang, Nicholas Pun
    Summer research project presentations: Integration by differentiation, Time-varying bandwidth filtering for the SKA telescope project, Shannon analysis of jumping champions of prime numbers.
  • August 4 (Thu), 10am, David Layden
    Master's defense.
  • August 3 (Wed.), 2pm, Guillaume Verdon-Akzam
    Holographic quantum error correcting codes
  • July 28 (Thu), 1pm, Robert Jonsson
    Ph.D. Defense
  • July 6 (Wed.), 11am, room QNC 1501, Dr. Valentina Baccetti (Macquarrie University)
    Clausius entropy for bifurcate null surfaces and its application to the thermodynamic derivation of the Einstein equations
  • June 29 (Wed.), 3pm, Aidan Chatwin-Davies (CalTech)
  • June 21-24
    We are hosting the RQI-N2016 conference at the IQC!
  • June 20th (Mon.), 11am, Jason Pye and Aida Ahmadzadegan
    Test run of conference talks
  • June 15th (Wed.), 11am, Prof. Eduardo Martin-Martinez
    Low energy signatures of Causal sets and other Lorentz invariant Non-Local Theories
  • June 8th (Wed.), 3:30pm, Alfred Shapere (University of Kentucky)
    Quantizations of time crystals
  • June 3rd (Friday), 2pm, Dr. Stefan Nimmrichter (Singapore National University)
    Macroscopicity of Quantum Experiments
  • June 2nd (Thursday), PSI Master's defenses at PI
    11am: Maria Papegeorgiou, On the implementation of a covariant ultraviolet cutoff
    2pm: Leilee Chojnacki, A new approach to superoscillations
  • May 11 (Wednesday), 10am, Guillaume Verdon-Akzam
    Black Hole Complementarity: Beyond Semiclassicality
  • May 5 (Thursday), 11am in room 400 at PI, Dr. William Donnelly (UCSB)Ìý
    Entanglement of Spacetime
    Ìý

Winter 2016

  • April 21st (Thursday), 10:30am, room QNC1501, AK talks at the Indian Canadian Research Colloquium
    How to integrate by differentiating
  • April 20th, 10:30am, Prof. Sukhdev Roy (Dayalbagh Educational Institute, Agra, India)
    Optical Information processing with natural photoreceptor proteins
  • AprilÌý13th, 11am, Maria Papageorgiou (UW,PI)
    On energy conditions and entanglement inequalities
  • April 6th, 11am, Yasaman Yazdi (UW,PI)
    Entanglement entropy in causal set theory
  • March 23rd, 11am, Daniel Grimmer
    Emergence of open dynamics from general repeated interactions, and its applications
  • March 16:
    2:30pm, Prof. José A. Zapata (UNAM, Mexico)
    Observable currents
    10:00am, Jon Herman, (Pure Math, UW)
    On Noether's theorem and the Legendre transform
  • March 10, (Thursday), 1:30pm, Jason Pye, David Layden, GuillaumeÌýVerdon-Akzam
    Test runs of March MeetingÌýtalks
  • March 9, 12 noon, Meenu Kumari (UW / WLU)
    In search of quantum analogs of classical chaos and synchronization
  • March 2, 10am, András Molnár (Max Planck Institute for Quantum Optics, Garching, Germany)
    Rapid adiabatic generation of Gibbs states
  • February 24, 4:30pm, Nayeli Azucena Rodriguez Briones (IQC)
    Heat-Bath algorithmic cooling with correlated qubit-environment interactions
  • February 17, 2pm, Naoki Watamura (UW / Nagoya University, Japan)
    Introduction to entanglement entropy of gauge fields and its boundary condition
    February 17, 11am, Eric Hanson (McGill)
    Landauer's principle in repeated interaction systems (slides)
  • February 10, 12:30pm, Yongmin Cho (Chinese Academy of Sciences, Lanzhou)
    Abelian Decomposition of Einstein’s Theory
  • February 3, 11am, Guillaume Verdon-Akzam
    Asymptotically limitless quantum energy teleportation.Ìý
  • January 20, 11am, Alvaro Alhambra (University College London)
    On quantum thermodynamics
  • January 13 (Wed.), 11am, Prof. Jorma Louko (University of Nottingham)
    Low energy Lorentz violation for high-energy mode field dispersion

Fall 2015

  • December 15, 10:30am (PHYS352), Cohl Furey
    Ph.D. defense
  • November 18, 11am, Dr. Electra Eleftheriadou (IQC)
    How to amplify perfectly (just not every time)
  • November 16, 4pm, David Layden and Nayeli Rodriguez (IQC)
    IndirectÌýquantum control. Strong local passivity.
  • November 12, 5pm, AK talks to PM-AM-C&O Club
    How to integrate by differentiating and other wild new math inspired by physics and engineering.
  • November 4, 11am, Dr. Eric Brown (Barcelona)
    What does it mean for half of an empty box to be full?
  • October 27, 2pm, Simon Foreman (Stanford)
    The effective field theory of cosmological large scale structure
  • October 14, 11am, Natacha Altamirano (UW,PI)
    Continuous quantum measurements and feedback
  • October 7 (Wednesday), 11am, Dr. Josh Combes (UW, PI)
    Times They Are A-Changin’: Ìýcharacterizing time dependent sources and gates
  • September 23 (Wednesday), 11am, Dr. Chris Ferrie (University of Sydney, Australia)
    Self-guided quantum systems
  • September 16 (Wednesday) 11am, Katja Ried (UW, PI)
    On causality in quantum theories
  • Sept.Ìý12Ìý(Saturday) 5:00pm, MikhailÌýPanineÌý(at Perimeter Institute)Ìý
    NumericalÌýspectral geometry
    WorkshopÌýNoncommutativeÌýGeometry and Physics
  • Sept.Ìý12 (Saturday) 4:15pm,ÌýAK (at Perimeter Institute)
    Infinitesimal spectral geometry
    Workshop Noncommutative Geometry and Physics
  • Sept.Ìý1 (Tuesday), 2pm, Aidan Chatwin-Davies (CalTech)
    How to retrieve a qubit from a black holeÌý

Spring/Summer 2015

  • August 25th, (Tuesday), 2pm, Pablo Rodriguez-Lopez (CNRS, Paris XI)
    Stochastical approach to the CasimirÌýeffect
  • August 12th (Wednesday), 2pm, Prof. Benni Reznik (Tel Aviv University)
    Superoscillations underlying remote state preparation for relativistic fields
  • August 12th (Wednesday), 10am, Prof. MasahiroÌýHotta (Tohoku University, Sendai, Japan)
    The fall of black hole firewalls
  • August 11Ìý(Tuesday),Ìý2pm, Dr. WilliamÌýDonnellyÌý(UCSB)
    Entanglement entropy and the electromagnetic field
  • July 14 (Tuesday), 4pm, Prof. GaetanoÌýFiore (Universita' di Napoli and INFN)
    Laser-driven acceleration mechanisms of plasma electrons, and the slingshot effect
  • June 24 (Wednesday), 10:30am, Prof. Valerio Scarani (National University of Singapore)
    Quantum Randomness
  • JuneÌý23 (Tuesday), 4pm, Lucas Hackl (Penn State)
    Entangled spin network states in Loop Quantum Gravity
  • June 18 (Thursday), 12pm, Dr. Mercedes Martin-BenitoÌý(Radboud Universiteit Nijmegen, Netherlands)
    Gauge-invariant formulation and hybrid quantization of flat FRW cosmologies with linear perturbations
  • June 11 (Space Room, PI), 2:30pm, AK​
    How to (path) integrate by differentiating
  • June 9, 2pm, Dr. Bruno Hartmann (Humboldt University Berlin)
    Operationalization of Basic Observables in Classical and Relativistic Dynamics
  • May 19, 4:30pm, Prof. Luis Garay (Universidad Complutense de Madrid)
    Do stars die too long?
  • May 19, (MC6496), 2pm, Mikhail Panine
    Comprehensive exam​
  • May 13, (Time room, PI), 11am, Achim speaks at Perimeter Institute conference Information-Theoretic Foundations for Physics
    What if Nature is BandlimitedÌýby a Planck-scale cutoff?Ìý
  • May 12, 2pm, Prof. Silke Weinfurtner (University of Nottingham)
    Hydrodynamic simulation of black holes
  • May 7, 11am, Guillaume Verdon-Akzam
    High-dimensional Quantum Key Distribution using Orbital Angular Momenta of Photons
  • May 5,Ìý2pm, RobertÌýJonsson
    OnÌýQuantum Speed Limits

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Winter 2015

  • Apr. 27, 11am, Prof. Sabine Hossenfelder (Nordita, Stockholm)Ìý
    Analog Duality
  • Apr. 22, 11am, Mikhail PanineÌý
    On heat kernel methods
  • Apr. 15, 11am, Prof. Chris Bauch
    Mathematical modelling of coupled disease-behaviour dynamics, with application to childhood vaccine scares
  • Apr. 1, 11am, Emma McKay (IQC)
    Random State production in quantum chaos
  • Mar. 26 (Thursday), 10am, Nayeli Rodriguez (IQC)
    Achievable polarization for Heat-Bath Algorithmic Cooling
  • Mar. 18, 10:30am, Prof. Eduardo Martin-Martinez
    The Anti-Unruh effect, and weakness of firewalls
  • Mar. 11, 11am, Prof. Roger Melko (UW, PI)
    Quantum Monte Carlo and Entanglement Entropy
  • Mar. 4, 11am, Yasaman Yazdi, (UW,PI)
    Firewall Phenomenology with Astrophysical Neutrinos
  • Feb. 18, 2pm, Prof. Masahiro Hotta (Tohoku University, Sendai, Japan)
    OnÌýQuantum Energy Teleportation
  • Feb. 18, 11am, Mehdi Saravani (UW, PI)
    Dark matter from spacetime nonlocality
  • Feb. 18, 10:30am, David Layden
    Test run of talk at APS meeting.
  • Feb. 11, 11am, Guillaume Verdon-Akzam
    Quantum energy teleportation in squeezed vacua
  • Feb. 4, 11am, Guillaume Verdon-Akzam
    Quantum energy teleportation and the controlled Hawking process
  • Jan. 28, 11am, Robert Jonsson
    Matrix product states
  • Jan. 21, 11am, Guillaume Verdon-Akzam
    On the recovery of quantum information from black holes
  • Jan. 15, 11am, Prof. Jorma Louko (Univ. of Nottingham)
    Superconducting circuit boundary conditions beyond the Dynamical Casimir Effect
  • Jan. 14, 11am, Dr. Casey Myers (Univ. of Queensland, Australia)
    Vibrationally Enhanced Quantum Transport
  • Jan. 7, 11am, Prof. Jorma Louko (Univ. of Nottingham, U.K.)
    How long does it take Unruh de Witt detectors to thermalize?
  • Achim in Australia and New Zealand for lectures, talks and conferences (at UWA, U. Sydney, UQ, RQI-S2014 and CosPa2014).
  • September 24, 1:30 pm: Marius Oltean
    Cosmological perturbations in antigravity
  • September 11, 2:00 pm: Oleg Kabernik
    Quantum reference frames and the Poincaré symmetry
  • September 3, 2:30 pm: Alejandro Pozas (Perimeter Scholars International (PSI) of the Perimeter Institute for Theoretical Physics (PI))
    Hot electrons as the source of photocurrent in graphene

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Spring/summer 2014

  • August 29, 11:00 am: Prof. Shih-Yuin Lin (Chang Hua University, Chang Hua and Academia Sinica, Taipei)
    Unruh effect under non-equilibrium conditions
  • August 27, 2:30 pm: Aidan Chatwin-Davies (California Institute of Technology),
    AdS/MERA and beyond
  • August 25, 2:30 pm: Daniel Huemmer (Universities of À¶Ý®ÊÓƵ and Heidelberg),
    On Unruh-DeWitt detectors
  • August 14, 2:00 pm: Eduardo Martin-Martinez,
    Review of quantum energy teleportation
  • August 13, 2:30 pm: Jeremy Sakstein (Cambridge University, U.K.)
    Testing theories of modified gravity using astrophysics
  • August 6, 2:30 pm: Nathan Killoran (University of Ulm, Germany),
    Extracting entanglement from identical particles
  • July 11, 1:30 pm: William Donnelly and Jason Pye,
    On the continuous wavelet transform
  • July 9, 2:00 pm: Shane Farnsworth, (University of À¶Ý®ÊÓƵ, PI),
    Predictions of non-commutative geometry: the sigma field
  • July 2, 2:30 pm: Daniel Guariento (Universidade de São Paulo and PI),
    Evolution of cosmological black holes: exact solutions, accretion and scalar fields
  • July 2, 11:00 am: William Donnelly,
    On methods for calculating entanglement entropy
  • June 24, 10:00 am: Robert Martin (University of Cape Town),
    On the dilation of quantum channels
  • June 4, 2:30 pm: Cohl Furey (University of À¶Ý®ÊÓƵ, PI),
    Charge quantization from a number operator
  • May 23, 2:30 pm: Hans Westman (Instituto de Física Fundamental, (CSIC), Madrid, Spain),
    Signature change, dark energy, and Cartan gravity with dynamical symmetry breaking
  • May 7, 10:00 am: Prof. Fedele Lizzi (University of Napoli, Italy),
    Quantum spacetime, the view from below

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Winter 2014

  • April 30: Nick Menicucci (University of Sydney),
    Continuous-variable cluster states: powerful extensible cluster states
  • April 24, 10:00 am: Angus Prain (Bishop's University, Sherbrooke, Quebec),
    Building a black hole in the bathroom or otherwise
  • April 23: Shane Farnsworth (University of À¶Ý®ÊÓƵ, PI),
    Applications of non-associative geometry
  • April 16: Aharon Brodutch (Institute for Quantum Computing (IQC)),
    Weak measurements and the two-state vector formalism
  • April 2: Achim Kempf,
    New Dirac delta function methods for perturbative expansions in quantum field theory and beyond
  • March 26: Prof. Barry Sanders (University of Calgary),
    Evolutionary algorithms for hard quantum control
  • March 19, 2:30 pm: Guillaume Verdon-Akzam (McGill University),
    On the Unruh vacuum
  • March 19, 11:00 am: Prof. William Kinney (State University of New York (SUNY) Buffalo),
    Review of the BICEP2 results and their implications for inflationary cosmology and quantum gravity
  • March 14, 12:45 pm: Prof. Enrique Solano (University of the Basque Country, Spain),
    New perspectives in quantum simulations
  • March 12: Marvellous Onuma-Kalu (University of À¶Ý®ÊÓƵ, PI),
    Mode invisibility and single photon detection
  • March 5: Siavash Aslanbeigi (University of À¶Ý®ÊÓƵ, PI),
    The causal set - continuum correspondence
  • February 26, 2:30 pm: Hilary Carteret
    Computationally accessible bounds for the negativity using replicas
  • February 19, 2:00 pm: Philipp Hoehn (PI),
    Quantization of systems with temporally varying discretization
  • February 12, 2:30 pm: Siavash Aslanbeigi (University of À¶Ý®ÊÓƵ, PI),
    Causal set d'Alembertians: continuum limit, spectrum, stability, and a new regulator for QFT
  • February 12, 10:30 am: Josh Combes (University of New Mexico),
    Limitations of quantum amplifiers
  • February 5: Cohl Furey (University of À¶Ý®ÊÓƵ, PI),
    Generations: three prints, in colour
  • January 29, 2:30 pm: Nosiphiwo Zwane (University of À¶Ý®ÊÓƵ, PI),
    Propagation of particles in the discrete spacetime of causal set theory
  • January 22, 2:30 pm: Bianca Dittrich (PI),
    Diffeomorphism symmetry in the discrete and perfect discretizations
  • January 15: Prof. Jorma Louko (University of Nottingham),
    Particle detectors near and beyond black hole horizons
  • January 8: Nick Menicucci (University of Sydney, Australia),
    Acceleration-assisted entanglement harvesting and rangefinding

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Fall 2013

  • December 18, 10:30 am: Mikhail Panine
    Jet spaces and nonlinear PDEs
  • December 13, 10:30 am: Juan Jose Garcia-Ripoll,
    Detecting majorana fermions and topological order in optical lattices
  • December 12, 2:30 pm, Time Room at PI: Achim Kempf,
    Curvature in terms of entanglement
  • December 12, 12:00 pm: Eduardo Martin-Martinez,
    Topics in quantum information II
  • December 11, 10:30 am: Jason Pye,
    From generalized uncertainty and commutation relations to sampling in QFT
  • December 4, 1:30 pm: Eduardo Martin-Martinez,
    Topics in quantum information I
  • December 4, 10:30 am: Daniel Huemmer,
    Weak measurements
  • November 27, 10:30 am: Robert Jonsson,
    Quantum theory of amplifiers
  • November 25, 4:00 pm: Aristide Baratin,
    Research proposal test run: combinatorial methods for quantum gravity
  • November 20, 10:30 am: Achim Kempf introduces three topics for journal club:
    Quantum amplifiers, Weak measurements, and Uncertainty and sampling
  • November 13, 10:30 am: Robert Jonsson,
    Review of a new paper by Pitkovski et al on gravitational decoherence
  • November 11, 2:00 pm: Maite Dupuis,
    Applications of Poisson Lie group
  • November 6, 10:30 am: Michael Hartz,
    Introduction to C* algebras
  • November 4, 2:00 pm: Prof. Florian Girelli,
    Introduction to Poisson Lie groups
  • October 30, 9:30 am:
    Eric Brown's qualifier from 11:00 am
  • October 23, 10:30 am: Ghazal Geshnizjani,
    Can non-local or higher derivative theories provide alternatives to inflation?
  • October 21, 2:00 pm: Aristide Baratin,
    A hint of group field theory
  • October 16, 10:30 am: Yasaman Yazdi (PI),
    A spacetime approach to computing entropy
  • October 9, 10:30 am, MC 6334: Latham Boyle (PI),
    The standard model from non-commutative geometry; and the non-associative extension
  • October 2, 10:30 am, MC 6331: Katja Ried (PI),
    Causal models: classical and quantum
  • September 20, 2:00 pm, MC 6334: Prof. Tim Ralph (University of Queensland, Australia),
    Relativistic quantum optics
  • September 18, 10:30 am, MC 6334: Aida Ahmadzadegan (University of À¶Ý®ÊÓƵ); William Donnelly, Test runs of Banff conference talks

Visitors

  • Prof. Timothy Ralph (University of Queensland)
  • Nick Menicucci (University of Sydney)

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Spring/summer 2013

  • August 19, 2:00 pm, MC 5158:
    Master's thesis defense by Aidan Chatwin-Davies.
    Examiners: Girelli, Afshordi, and Kempf. Chair: Scott.
  • August 14, 10:30 am: Chris Sutherland,
    On the role of locality in epistemic models
  • August 12, 10:00 am, MC 5158:
    Master's thesis defense by Eric Webster.
    Examiners: Nayak, Koenig, and Achim Kempf.
  • August 7, 10:30 am: Fabio Grazioso (University de Montreal),
    Uses of NV defects in diamonds: qubits, entanglement, single photon sources and QKD
  • July 31, 10:30 am: Eric Webster,
    High energy modifications of blackbody radiation and dimensional reduction
  • July 10, 10:30 am:
    Journal Club and report on RQI-N from Robert
  • June 26, 10:30 am: Michael Rouben,
    Scalar field perturbations in a bounce cosmology
  • June 19, 2:00 pm, Gravity Room at PI: Robert Jonsson,
    Quantum signalling with Unruh-DeWitt detectors
  • June 12, 10:30 am: William Donnelly,
    Euclidean Maxwell theory in curved spacetime
  • June 5, 2:00 pm, meet in the atrium at PI: Robert Martin (University of Cape Town)
  • May 30, 4:00 pm: John Klauder (University of Florida)
    Completing canonical quantization
  • May 29, 10:30 am: Xian Ma (IQC)
  • May 6, 3:30 pm: Aidan Chatwin-Davies,
    On the vacuum and path integrals

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Winter 2013

  • April 29, 3:30 pm: Razieh Pourhasan (PI),
    On holographic entanglement entropy
  • April 22, 3:30 pm, Mike & Ophelia Lazaridis Quantum-Nano Centre (QNC) B201: Dr. William Donnelly
    Einstein-aether inflation
  • April 8, 3:30 pm: Aron Wall, (UC Santa Barbara),
    Maximin surfaces and holographic entanglement entropy
  • April 1, 3:30 pm:
    Journal Club
  • March 25, 3:30 pm: Yigit Subasi (University of Maryland),
    Equilibration in the strong coupling regime
  • March 18, 3:30 pm:
    Projects update
  • March 4, 3:30 pm:
    Journal Club
  • February 25, 3:30 pm: Aharon Brodutch (IQC),
    Quantum discord
  • February 11, 3:30 pm:
    Journal Club
  • February 4, 3:30 pm: Hilary Carteret (PI),
    Some semi-classical relativistic effects that may be relevant to R-QIP using Unruh- squeezed states
  • January 28, 4:30 pm: Eugenio Bianchi (PI),
    Black hole entropy from graviton entanglement
  • January 21, 3:30 pm:
    10 minute summaries

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Fall 2012

  • December 14, 10:00 am:
    Journal Club
  • December 7, 9:00 am: Luis Garay (Universidad Complutense de Madrid),
    Black holes: to be or not to be, that is the question
  • November 30, 10:30 am: Mehdi Saravani,
    Empty black holes, firewalls, and the origin of Beckenstein-Hawking entropy
  • November 23, 10 am: Eric Webster,
    Introduction to prolate spheroidal wavefunctions
  • November 16, 10:30 am:
    Journal Club
  • November 9, 10:00 am: Mikhail Panine,
    Progress report: numerical exploration of inverse spectral geometry for a set of surfaces in R3
  • November 2, 10:00 am: Eduardo Martin-Martinez,
    Processing quantum information with relativistic motion of atoms
  • October 26, 10:45 am: Robert Jonsson,
    Causal femion systems and the fermionic projector
  • October 19, 11:00 am: Aidan Chatwin-Davies,
    A fully-covariant natural ultraviolet cutoff in inflationary spacetimes
  • October 12, 10:00 am:
    Journal Club

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Spring/summer 2012

  • August 23, 3:00 pm: Dr. Ghazal Geshnizjani,
    Scale-invariant perturbations without inflation, yes or no?
  • August 23, 12:00 pm, Research Advancement Centre (RAC) 2009: Thomas Blasi (Harvard),
    Coherent control of charge states in coupled quantum dots
  • August 22, 11:00 am: Dr. Robert Koenig,
    Limits on classical communication over quantum channels and their cryptographic use
  • August 15, 11:00 am, Dr. Ghazal Geshnizjani,
    Survey of issues in inflationary cosmology
  • July 13, 11:30 am: Nick Menicucci (University of Sydney),
    Acceleration-assisted entanglement harvesting
  • July 4, 11:00 am: Jaques Pienaar (University of Queensland),
    Quantum experiments in gravitational fields may lead to more than just decoherence
  • June 22, 2:00 pm: William Donnelly (University of À¶Ý®ÊÓƵ, University of Maryland),
    On the entanglement entropy of gauge fields
  • June 21, 2:00 pm: David Aasen, Aidan Chatwin-Davies, and William Donnelly,
    Test runs of their conference talks next week.
  • June 21, 11:00 am: Sebastian Probst (Karlsruhe Institute of Technology, Germany),
    Towards an erbium quantum memory for superconducting qubits
  • June 19, 11:00 am: Laurel Haskins-Stephenson (UCSC), two half-length talks on
    Introduction to holography and Aspects of spectral geometry
  • June 18, 11:00 am: Lucas Hackl (PI),
    Symplectic geometry, constrained systems and shape dynamics
  • June 15, 4:00 pm: Spiros Michalakis (CalTech),
    Introduction to quasi-adiabatic evolution
  • June 13, 2:30-3:00 pm: Mercedes Martin-Benito (PI),
    Introduction to loop quantum cosmology,
  • June 13, 3:15-3:45 pm: Sammy Ragi (University of Nottingham),
    The nature of correlations in ghost imaging
  • June 6, 2:00 pm, University de Montreal:
    Achim Kempf talks at Workshop on Geometry of Eigenvalues and Eigenfunctions.
  • May 31, 11:00 am: Tejal Bhamre (Princeton University),
    On colored graphs
  • May 25, 3:00 pm, Sky Room at PI: Achim Kempf talks in PSI seminar,
    How spacetime could be simultaneously continuous and discrete, in the same way that information can be
  • May 24, 2:00 pm: Prof. John Klauder (University of Florida),
    Affine quantum gravity: review and recent results
  • May 24, 11:00 am: David Aasen,
    On the spectral geometry of graphs
  • May 18, 2:00 pm: Eduardo Martin-Martinez,
    The Unruh-Dewitt detector model and its use in relativistic quantum information

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Winter 2012

  • April 25, 11:00 am:
    Group discussion of projects
  • April 19, 11:00 am: Siavash Aslanbeigi (University of À¶Ý®ÊÓƵ and PI),
    On vacuum energy in cosmology
  • April 5, 11:00 am: Chris Ferrie,
    Negativity of the Wigner function is necessary for magic state distillation
  • April 2, 10:00 am: Robert Martin (University of Cape Town),
    Reproducing kernel Hilbert spaces of square integrable functions
  • March 30, 2:30 pm: Robert Martin (University of Cape Town),
    Covariant sampling theory in cosmology
  • March 29, 11:00 am: David Rideout (UC San Diego),
    Testing Quantum Theory at large length/time scales with satellites - towards the scale of spacetime curvature and beyond
  • March 26, 10:00 am: Maite Dupuis (ENS Lyon, France),
    On harmonic oscillators in loop quantum gravity
  • March 22, 11:00 am: Eric Brown (Department of Physics and Astronomy, University of À¶Ý®ÊÓƵ),
    On quantum discord
  • March 19, 10:00 am:
    Group discussion of projects.
  • March 15, 11:35 am: Markus Mueller (PI),
    Concentration of measure for quantum states with a fixed expectation value
  • March 12, 9:00 am: Eduardo Martin-Martinez,
    Review of current research projects in relativistic quantum information
  • March 8, 10:00 am: Kiril Datchev (Massachusetts Institute of Technology (MIT)),
    On inverse spectral geometry
  • March 5, 10:00 am: Aidan Chatwin-Davies,
    Review of a paper by Datchev & Hezari on spectral geometry IV
  • February 17, 10:30 am: Robert Jonsson,
    Review of a paper by Datchev & Hezari on spectral geometry III
  • February 10, 10:30 am: Mikhail Panine,
    Review of a paper by Datchev & Hezari on spectral geometry II
  • February 3, 10:30 am: Aidan Chatwin-Davies,
    Review of a paper by Datchev & Hezari on spectral geometry I
  • January 27, 10:30 am: Eric Webster,
    On the asymptotics of superoscillations
  • January 25, 9:30 am: David Bruschi (University of Nottingham),
    How cavities' motion affects entanglement
  • January 20: Jeff Hnybida (PI),
    BF-theory and spin foam models III
  • January 12: Jeff Hnybida (PI),
    BF-theory and spin foam models II

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Fall 2011

  • December 15, 11:00 am: Jonathan Ziprick (PI),
    Relating loop quantum gravity and general relativity
  • December 9, 11:00 am: Mikhail, Aidan and Robert,
    15 minute applied functional analysis seminars.
  • December 7, 11:00 am: Yufang Hao,
    The Shannon sampling theorem: Fourier and functional analytic approach
  • November 30, 4:30 pm: Cedric Beny (University of Hannover, Germany),
    On entanglement renormalization
  • November 30, 11:00 am: Aharon Brodutch (Macquarie University, Sydney, Australia),
    Polarized photon qubits in curved space-time
  • November 23, 11:00 am: Eric Webster,
    Properties of entanglement entropy
  • November 18, 11:00 am: Alexander Gutfraind (University of Texas at Austin),
    Aspects of network theory
  • November 17, 2:30 pm, MC 5136: Alexander (Sasha) Gutfraind (University of Texas at Austin),
    Computational problems on complex networks
  • November 16, 11:00 am: Aidan Chatwin-Davies,
    On the partial trace over subsystems II
  • November 11, 11:00 am: Aidan Chatwin-Davies,
    On the partial trace over subsystems I
  • November 9, Jeff Hnybida (PI),
    BF-theory and spin foam models I
  • November 3, 10:00 am: Eduardo Martin-Martinez (University of Madrid),
    Aspects of relativistic quantum information
  • November 2, 11:00 am: Hans Westman (University of Sydney and PI),
    Localized q-bits in curved spacetimes
  • October 27, 3:30 pm: (refreshments in PHY151), 4pm: Colloquium in PHY151, Prof. John Klauder, (University Florida),
    Affine quantization
  • October 26, 3:00 pm: Spiros Mikalakis (CalTech),
    Stability of frustration-free Hamiltonians II
  • October 24, 11:00 am: Aron Wall (UC Santa Barbara),
    On black hole thermodynamics
  • October 24, 4:00 pm, Time Room at PI: Spiros Michalakis (CalTech),
    Stability of frustration-free Hamiltonians I
  • October 19, 10:00 am: Chris Ferrie,
    On the sampling of probability distributions
  • October 19, 11:00 am: Federico Piazza (University de Paris 7),
    Spontaneous symmetry probing states
  • October 12, 11:00 am: Prof. John Klauder (University of Florida),
    On affine quantization methods
  • October 7, 10:30 am: Prof. Naoki Saito (UC Davis),
    New methods for radar and sonar
  • October 6, 3:30 pm: MC 5136, Prof. Naoki Saito (UC Davis), Harmonic/wavelet analysis on graphs and networks with applications
  • October 5, 11:00 am: Prof. Naoki Saito (UC Davis), Laplacian Eigenfunctions that do not feel the boundary: theory, computation and applications
  • October 4, 9:00 am-12:00 pm: Achim Kempf,
    Sampling of curvature II
  • October 3, 9:00 am-12:00 pm: Achim Kempf,
    Sampling of curvature I
  • September 28, 9:00 am-12:00 pm: Achim Kempf,
    Sampling theory
  • September 21, 3:30 pm: MC 5136:
    Master's defense by Eduardo Brandao.
  • September 21, 11:00 am: Achim Kempf,
    Generalized uncertainty relations II
  • September 19, 3:00 pm: in MC 5136:
    PhD defense by Yufang Hao
  • September 16, 4:00 pm: Yufang Hao:
    Test run of his PhD defense presentation
  • September 14, 11:00 am: Achim Kempf,
    Generalized uncertainty relations I

Visitors

  • Prof. John Klauder (University of Florida)
  • Prof. Naoki Saito (University of California (UC) Davis)
  • Spiros Michalakis (California Institute of Technology)
  • Sasha Gutfraind (University of Texas)
  • Aron Wall (UC Santa Barbara)
  • Eduardo Martin-Martinez (University of Madrid)

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Spring/summer 2011

  • August 25, 11:00 am: David Aasen (McGill University),
    Creating a spin polarized wave packet
  • August 24, 11:00 am: Tejal Bhamre (IIT Bombay & Princeton),
    Jet detection algorithms using Haar wavelets
  • August 18: M. Nica, E. Bembenek, and M. Panine
    presentations at Applied Math undergraduate research conference.
  • August 18, 11:00 am:
    M. Nica, E. Bembenek, and M. Panine give more trial runs of their conference talks.
  • August 17, 11:00 am:
    E. Bembenek and M. Panine give trial runs of their conference talks.
  • June 22, 11:00 am: Prof. J. Emerson,
    Ontological models for quantum theory
  • June 15, 11:00 am: E. Bembenek,
    On spikes in superoscillatory waves
  • June 8, 11:00 am: R. Pfeifer (University of Queensland and PI),
    Simulating anyons in condensed matter physics
  • June 2: 11:00 am: Mihai Nica,
    Models of competitive games and transitive versus nontransitive rankings II
  • May 25: 11:00 am: L. Stephenson Haskins, and I. Roth,
    Aspects of infinitesimal spectral geometry
  • May 18, 11:00 am: M. Panine,
    Dielectic Microresonators: applications, perturbative treatment and finite element simulation
  • May 11, 11:00 am: M. Nica,
    An evolutionary algorithm for leg dynamics,
    and Eric Bembenek,
    On stratified fluid flows
  • May 10, 10:00 am-5:00 pm:
    Summer project planning
  • May 4, 2:00 pm:
    Group discussion of research topics III
  • May 4, 11:00 am: M. Nica,
    Models of competitive games and transitive versus nontransitive rankings I
  • May 3, 11:00 am:
    Group discussion of research topics II
  • May 2, 1:00 pm:
    Group discussion of research topics I

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Winter 2011

  • April 26, 3:00 pm: Achim Kempf gives Institute for Quantum Information and Matter (IQI) colloquium talk at CalTech, Spacetime could be simultaneously continuous and discrete in the same way that information can
  • April 8, 12:00 pm: Achim Kempf talks in Gravity Seminar at UC Santa Barbara, Spacetime could be simultaneously continuous and discrete in the same way that information can
  • March 30, 10:00 am: Eduardo Brandao, Gauge invariant perturbations on the 2-sphere
  • March 24, 11:30 am: Olaf Dreyer, On quasinormal modes of black holes
  • March 4: Achim Kempf gives seminar in Department of Mathematics at University of Toronto, Infinitesimal inverse spectral geometry and applications in mathematical physics
  • March 2: Alessio Orlandi (University of Bologna and Istituto Nazionale di Fisica Nucleare (INFN), Italy), A Glimpse of the Kodama vector
  • February 28: Jay Olsen (University of Queensland, Australia), Timelike entanglement in the quantum vacuum
  • February 24: Achim Kempf gives colloquium at the Santa Fe Institute, Spacetime could be simultaneously continuous and discrete, in the same way that information can be
  • February 23: Achim Kempf gives colloquium at Los Alamos National Lab (LANL), Spacetime could be simultaneously continuous and discrete, in the same way that information can be
  • February 22: Achim Kempf gives colloquium at the LANL, High Tc superconductivity and the Casimir/van der Waals effect
  • February 2: F. Piazza (University de Paris 7), Modifying gravity in the Infrared by imposing an 'ultra-strong' equivalence principle
  • January 26: Andy Randono (PI), Torsional Skyrmions
  • January 19: Loic Markley (University of Toronto), Superresolution: theory and practice
  • January 12: Florian Conrady (PI), Space as a low-temperature regime of graphs

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Fall 2010

  • December 20: Achim Kempf talks at Heidelberg University, Germany
  • December 17: Achim Kempf talks at Albert Einstein Institute (AEI), Potsdam, Germany
  • December 1: Alioscia Hamma (PI), Locality of dynamics and the structure of correlations in quantum many body systems
  • November 4, 2:30 pm, MC 5136: Frederic Schuller (Einstein Institute, Golm, Germany), TBA
  • October 29, 11:00 am: Alexander Gutfraind (LANL), On the resilience of networks
  • October 27: Mikhail Panine, two-part talk, On gravitational lensing/On the Helmholtz equation in dielectric cavities
  • October 20: Olaf Dreyer, Internal relativity: quantum gravity without quantization
  • October 14, MC 5136: Prof. Almut Burchard (University of Toronto), Convergence and smoothing properties of Steiner symmetrizations and other simple rearrangements
  • October 13, 9:00 am: mini workshop on entanglement entropy in quantum field theory.
    • Speakers: Miyake, Piazza, Casini, Myers, Smolkin, and Sinha.
  • October 6, 4:00 pm, Bob Room at PI: Prof. John Klauder (University of Florida), Proposal for divergence-free quantization of covariant scalar fields
  • October 6: Robert Martin, (UC Berkeley), On a covariant UV cutoff in cosmology
  • September 29: Eduardo Brandao, On H. Nielsen's random dynamics
  • September 22: Chris Ferrie, Optimal quantum state estimation
  • September 17, 11:00 am: Piero Nicolini (University of Frankfurt), Evaporating black holes in the presence of a minimal length
  • September 17, 2:00 pm: Benjamin Niedner, Hausdorff dimension of particle paths inquantum spacetime
  • September 17, 2:30 pm: Martin Sprenger, Neutrino oscillations in a minimal length model
  • September 13: Achim Kempf talks at CITA/PI meeting in Toronto.

Visitors

  • Prof. Almut Burchard (University of Toronto), October 14
  • Frederic Schuller (AEI), October 26 - November 9
  • Robert Martin (UC Berkeley): October 4-9 and 11-14
  • Prof. John Klauder (University of Florida): October 5-8
  • Alexander Gutfraind (Los Alamos National Laboratory, U.S.)
  • Piero Nicolini (University of Frankfurt): September 15-October 1
  • Benjamin Niedner, Martin Sprenger: September 11-18

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Spring/summer 2010

  • August 1-15: Achim Kempf teaches at a summer school in Ftan, Switzerland.
  • July 7: Mathieu Cliche, On the propagation of quantum information in field quanta
  • June 30, 3:00 pm: Tejal Bhamre, On inverse spectral geometry
  • June 30, 11:00 am: David Aasen, On quantum fluctuations
  • June 29, 6:00 pm: Group dinner at Mandarin Restaurant
  • June 29, 11:00 am: Olaf Dreyer, Review of Sakharov's induced gravity
  • June 24, 2:00 pm: Eduardo Brandao, Aspects of spectral geometry II
  • June 23, 11:00 am: Michel Elnaggar, MIMO systems
  • June 16: Eduardo Brandao, Aspects of spectral geometry
  • June 2: Miok Park, Holographic normalization of asymptotically flat spacetimes
  • June 1, 11:30 am, Physics (PHY) 235: Achim Kempf gives Physics Seminar (PHYS 10) lecture to physics undergraduates on spacetime and information
  • May 26: Matt Coles (McMaster University), TBA
  • May 19: Robert Pfeiffer (University of Queensland, Australia), Interacting Fibonacci anyons and defects in conformal field theory
  • May 7: Andrzej Dragan (University of Warsaw, Poland), On the black hole information paradox
  • May 5: Cohl Furey (PI), Unified theory of ideals

Visitor

  • Prof. Robert Brout (University Libre de Bruxelles)

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Winter 2010

  • April 28: Olaf Dreyer, On emergent gravity
  • April 7: Andy Randono (PI), TBA
  • March 29: Hans Westman (University of Sydney, Australia), On the parallel transport of qubits
  • March 24: Chris Ferrie, Bayesian probability in quantum theory
  • March 10: Piero Nicolini, Evaporating black holes in the presence of a minimal length
  • February 24: Olaf Dreyer, Internal relativity, early universe cosmology IV
  • February 10: Olaf Dreyer, Internal relativity, early universe cosmology III
  • February 3: Olaf Dreyer, Gravity as an entropic force - discussion of Verlinde's paper
  • January 27: Eduardo Brandao, A review of spectral geometry
  • January 10: Achim Kempf talks at Department of Mathematics, University of Goettingen.

Visitor

  • Prof. Robert Brout (University Libre de Bruxelles)

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Fall 2009

  • Achim Kempf traveling in Australia and Europe
  • November 17: Olaf Dreyer, Internal relativity, early universe cosmology II
  • November 11: Olaf Dreyer, Internal relativity, early universe cosmology I
  • October 21: Radu Ionicioiu (Hewlett-Packard Lab, Bristol, U.K.), Generalized parity measurements: an entanglement resource
  • October 14: Nick Menicucci, (PI): Entangling power of an expanding universe
  • October 7, 9:00 am: Kamil Bradler (McGill University): What can the Unruh effect say about the additivity of the classical and quantum capacity of cloning channels?
  • September 16, 2:00 pm, Bob Room at PI: Achim Kempf talks in PI colloquium, Spacetime can be discrete and continuous, in the same way that information can
  • September 9, Achim Kempf talks at King's College in the University of Western Ontario, On physics and consciousness
  • September 2, Angus Prain (Scuola Internazionale Superiore di Studi Avanzati (SISSA), Italy), On superoscillations

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Spring/summer 2009

  • August 24: Achim Kempf talks at Emergent Gravity IV conference at UBC, (Vancouver), Spacetime could be simultaneously discrete and continuous, in the same way that information can
  • August 20, MC 5136: Chuck, Peter, Raymond and Simon talk in the summer students' research conference.
  • August 13: Oliver Winkler, Market efficiency
  • August 12: Chuck Bronson, Filtering for time-varying bandwidths
  • August 6, 11:00 am: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? VII
  • August 5: Peter Forbes, On the Casimir effect in high temperature superconductors
  • August 5: Raymond Su, On the design of radar signals
  • July 29: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? VI
  • July 23: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? V
  • July 22 Mathieu Cliche, Extracting entanglement from the vacuum
  • July 15: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? IV
  • July 8: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? III
  • July 6, 3:00 pm: Simon Foreman, On the Casimir effect in high temperature superconductors
  • June 24: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? II
  • June 17: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? I
  • June 11, 2:30 pm, PI Bistro: Achim Kempf, Information theoretic UV cutoff of spacetime II
  • June 4, 2:30 pm, PI Bistro: Achim Kempf, Information theoretic UV cutoff of spacetime
  • May 27, 11:00 am: Mathieu Cliche, Information flow in quantum fields
  • May 20, 11:00 am: Elias Okon, On Berry phases
  • May 14, 11:00 am: Cedric Beny (Centre for Quantum Technologies, National University Singapore): Joint measurability and preserved observables
  • May 13, 11:00 am: Hongbao Zhang (PI), S-matrix without local quantum field theory
  • May 12, 2:00 pm, MC 5136: Rob Martin (UC Berkeley) gives departmental seminar, Symmetric operators and sampling theory

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Fall 2008/winter 2009

  • Achim Kempf on sabbatical in Europe and Australia.

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Spring/summer 2008

  • August 13: Mathieu Cliche and Jeff Li give test runs of their conference presentations
  • August 6, William Donnelly, On entanglement in quantum field theory
  • July 31, 2:00 pm: Angus Prain, Semi-classical gravity and backreation
  • July 9, Yufang Hao: Stability of reconstruction in non-uniform sampling
  • July 2: Achim Kempf, On the Casimir effect in High Tc superconductors II
  • June 18: Achim Kempf, On the Casimir effect in High Tc superconductors I
  • June 11: Hongbao Zhang, Generalized second law, covariant entropy bound and the cosmological constant problem
  • June 4: Yufang Hao, Introduction to rate-distortion theory
  • May 28, Sabine Hossenfelder (PI), Observables of quantum gravity at the LHC
  • May 15, 2:00 pm, Alice Room at PI: Prof. John Klauder, Affine quantum gravity: a different view on a difficult problem
  • May 14, 10:00 am, Physics (PHYS) 352: Prof. John Klauder (University of Florida), Path integration: an historical slice
  • May 9, 10:00 am, MC 5158: William Donnelly's Master's defense
  • May 8, 10:00 am, MC 5136: Angus Prain's Master's defense
  • May 7, 9:30 am, MC 5136: Rob Martin's PhD defense

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Winter 2008

  • April 30, 11:30 am: Cedric Beny, Basics of superconductivity II
  • April 28, 11:30-12:30 pm, Bob Room at PI: Achim Kempf talks at PI conference . Title: A Unifying View of Graph Theory in Quantum Field Theory (work with D.M. Jackson and A. Morales).
  • April 25, 2:00 pm: Alejandro Borbonet, Bekenstein bounds and spectral geometry
  • April 23, William G. Davis Computer Research Centre (DC) 1304: Graduate student research conference (Achim Kempf acts as judge).
  • April 22, 11:00 am: Iraida Carnero, Noncommutative geometry and integrable models
  • April 16: Franklin Marquezino, Simulations of quantum walks
  • April 9, 11:00 am, Robert Martin, Time-varying bandwidths and invariant subspaces of differential operators
  • April 2: Renato Portugal, Quantum channel capacity and the Holevo bound
  • March 26: Cedric Beny, Basics of superconductivity I
  • March 5: Yufang Hao, Classical Shannon channel capacity
  • February 27, 4:00 pm, Bob Room at PI: Cedric Beny, Unsharp pointer observables and the structure of decoherence
  • February 13, David Ostapchuk, Entanglement creation in the fermionic Unruh effect
  • February 6: Renato Portugal, On quantum random walks
  • February 4, 2:30 pm, PHYS 352: Prof. Paul Smrz (University of Newcastle, Australia), special seminar jointly hosted with Department of Physics and Astronomy, 5D gravity and minimum length
  • January 30: Tom Waterhouse (PI), Cosmic variance of Ω
  • January 23, 11:00 am: Easwar Magesan, Identification of correctable codes via twirling
  • January 16: Cedric Beny, On the structure of decoherence

Visitors

  • Prof. Robert Brout (University Libre de Bruxelles)
  • Alejandro Borbonet
  • Iraida Carnero
  • Prof. Paul Smrz
  • Harold Steinacker

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Fall 2007

  • December 9-10: group takes part in .
  • December 8: Achim Kempf, Rob Martin and Cedric Beny talk at , in the special session on Quantum Information Theory in Quantum Gravity.
  • December 4: 11:00 am: Joe Henson (PI), On covariant discretizations II
  • November 27, 10:30 am: Federico Piazza (PI), On entanglement entropy in spacetime regions
  • November 20, 9:00 am: Joe Henson (PI), On covariant discretizations I
  • November 13: 10:00 am: Hongbao Zhang talks on entanglement entropy and related issues.
  • November 5-9: Achim Kempf co-organizes workshop at PI,
  • November 3, 3:00 pm, MC 5158: Prof. Ahmed Zayed (DePaul University, Chicago) talks on sampling theory in colloquium.
  • October 23, 10:00 am: Angus talks on superoscillations and quasilattices
  • October 16, 10am in MC 6091: Chris Ferrie review of a paper with J. Emerson.
  • October 11: Achim Kempf talks in Physics at UBC.
  • October 9, 10:00 am, MC 6091: John Madore (Paris), Aspects of noncommutative geometry
  • October 6: Rob Martin and Yufang Hao talk at AMS meeting in Chicago.
  • September 17-21: Achim Kempf talks at conference in Leipzig, Germany.
  • September 4-7: Achim Kempf co-organizes conference at University of Wuerzburg, Germany,

Visitors

  • Prof. John Madore (Paris)
  • Prof. Ahmed Zayed (Chicago)
  • Prof. Robert Brout (University Libre de Bruxelles)
  • Prof. Bill Unruh (University of British Columbia)
  • Prof. Jens Niemeyer (Wuerzburg)

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Spring/summer 2007

  • August 5-18: Achim Kempf teaches at summer school on quantum information, Ftan, Switzerland.
  • July 17: Yufang Hao, comprehensive exam.
  • July 10, 11:30 am: William Donnelly report on Loops'07 conference.
  • July 3, 11:30 am: Rob Martin report on SAMPTA07 conference.
  • June 25-30: William Donnelly talks at conference in Morelia, Mexico.
  • June 16-23: Achim Kempf at GRAVTUM1 conference.
  • June 6-8: Yufang Hao talks at , Edmonton.
  • June 1-6: Achim Kempf and Rob Martin talk at conference.
  • May 29, 11:30 am: Cedric report on Zakopane Winter School III.
  • May 15, 11:30 am: Cedric report on Zakopane Winter School II.
  • May 1, 11:30 am: Angus report on Zakopane Winter School I.
  • April 24, 11:00 am, Bob Room at PI: Mauro Francaviglia, (University of Torino, Italy): Dark energy as a curvature effect in nonlinear theories of gravity
  • April 19, 2:00 pm, Alice Room at PI: Mauro Francaviglia, The geometry of Barbero Immirzi connections
  • April 17, 11:30 am: William, Entanglement entropy in loop quantum gravity
  • April 10, 10:00 am, MC 5136: Cedric, comprehensive exam.
  • March 27, 11:30 am: Robert Brout, on random walks.

Visitors

  • Prof. Mauro Francaviglia (University of Torino)
  • Prof. John Klauder (University of Florida)
  • Prof. Robert Brout (University Libre de Bruxelles)

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Winter 2007

  • March 20, 10:00 am: Bernhard Bodmann, Quantum communications and an optimization problem for POVMs
  • March 13, 11:30 am: Angus Prain, On the effective action of QFT in curved space, (to be confirmed).
  • February 27, 11:30 am: Alejandro Morales, Intro to the effective action and graphs in QFT (5)
  • February 14, 11:30 am: Group photo opportunity.
  • February 13, 11:30 am: Achim Kempf, Intro to the effective action and graphs in QFT (4)
  • February 6, 11:30 am: Achim Kempf, Intro to the effective action and graphs in QFT (3)
  • January 30, 11:00 am, Bob Room at PI: Serge Winitzki, Quantum gravity and the conditions at the birth of the universe
  • January 30, 9:00 am: Achim Kempf, Intro to the effective action and graphs in QFT (2)
  • January 26, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (V)
  • January 25, 2:00 pm: Florian Koch talks in PI's quantum gravity seminar.
  • January 25, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (IV)
  • January 23, 11:30 am: Achim Kempf, Intro to the effective action and graphs in QFT (1)
  • January 22, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (III)
  • January 19, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (II)
  • January 18, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (I)

Visitors

  • Prof. Robert Brout (University Libre de Bruxelles)
  • Florian Koch (University of Munich)
  • Serge Winitzki (University of Munich)
  • Mauro Francaviglia (University of Torino)
  • Wenfeng Chen

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Fall 2006

  • December 8, 9:00 am (broadcast to Wuerzburg): Rob Martin, Sampling theoretic UV cutoff on curved spacetime
  • December 6, 11:00 am: Alejandro, Gravitational entropy and Fisher information
  • December 4, 3:30pm: Wenfeng Chen, Wavelets II
  • November 27, 9:00 am, MC 5158: Cedric's comprehensive seminar, Transmission of observables through quantum channels
  • November 24, 2:00 pm: Cedric gives test run of his comprehensive seminar.
  • November 20, 9:00 am (via video conference from Wuerzburg): Tim, Loop quantum cosmology II
  • November 13, 3:30pm: Wenfeng Chen, Wavelets I
  • November 7, 2:00 pm (via video-conference from PI): A. Green, Dark matter in cosmology
  • November 6, 9:00 am: Cedric Beny, Introduction to loop quantum cosmology
  • October 30, 4:00 pm: Wenfeng Chen, From Fourier to wavelets
  • October 16, 9:00 am: Angus, Introduction to quantum cosmology
  • October 9: No seminar due to Thanksgiving.
  • October 2: Hauke Haseler (IQC), Continuous quantum information and entanglement
  • September 25: Cedric, Locking quantum information
  • September 20: David, A model for mode creation in cosmology
  • September 13: Larissa Lorenz (IAP, Paris), Two field inflation
  • September 5-8: Achim Kempf and Justin Khouri run international workshop at PI, Planck scale cutoff in expanding spacetimes.Ìý
  • September 1, 11:00 am: Tom Waterhouse (University of British Columbia), Chameleon inflation

Visitors

  • Wenfeng Chen
  • Alejandro Borbonet
  • Prof. Robert Brout (University Libre de Bruxelles)

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Spring/summer 2006

  • August 16: Chris, test run of his summer conference talk
  • August 2: Chris, Introduction to phase space quantization
  • July 5: Cedric, On operator quantum error correction and information flow in measurements
  • July 5: Jonathan Oppenheim (Cambridge University), Negative, uncommon, and private information
  • June 21: Angus, Double special relativity
  • June 7: David, The cosmic microwave background II
  • May 31: Adeel, On quantum fluctuations
  • May 24: Joseph, Discrete vs. continuous randomization of quantum systems
  • May 17: David, The cosmic microwave background I
  • May 12: Bernhard, On quantum noise
  • May 10: John Madore (visitor from University Paris Sud), The fuzzy sphere
  • May 3: Cedric, On loop quantum cosmology
  • April 26: Yufang, Spectral methods in DEs

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Winter 2006

  • April 5: Rob: On sectional curvature bounds
  • March 29: William: On the holographic principle
  • March 22, 11:00 am, Bob Room at PI: Discussion of WMAP results
  • March 8: Sasha, On the genetic code, as a code
  • February 22: Cedric, Aspects of Shannon information and data compression
  • February 15: Sasha, Mechanisms leading tyo power laws
  • February 8: Sasha, Examples of power laws
  • February 1: Rob, Sampling theory on curved space
  • 25 January: William, Review of the gauge principle

Visitors

  • Prof. Robert Brout (University Libre de Bruxelles, Belgium)
  • Alessio Notari (McGill University)
  • Alejandro Borbonet (University of Mato Grosso, Brazil)

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Fall 2005

  • 29 November: discussion with audio/visual people re lab.
  • 15 November: Cedric, POVM versus von Neumann measurements II
  • 8 November: Cedric, POVM versus von Neumann measurements I
  • 1 November: William reports on his summer research, with Richard Cleves, on mutually unbiased bases and related issues.
  • 25 October, MC 5158: Oliynyk (Potsdam), Newtonian Limit for Perfect Fluids
  • 18 October: Sasha talks on mathematical models in epidemiology.
  • 11 October: David continues his report on the conference in Brazil.
  • 26 September, 2:00 pm: David reports on the conference in Brazil.
  • 20 September, 3:00 pm: Joseph reviews decoherence vs. dissipation.
  • 13 September: Joseph reviews decoherence.
  • 7 September: Jonathan Oppenheim (Cambridge University), Locking information in black holes

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Spring/summer 2005

  • 30 April-9 May: Achim Kempf in Europe.
  • 16 May: Group discussion over lunch.
  • 24-26 May: Achim Kempf and Sasha at Origins conference at McMaster.
  • 30 May: Rob gives test run of his talk at CMS meeting.
  • 31 May: Achim Kempf and Sasha talk at Origins workshop in Hamilton.
  • 4-6 June: Achim Kempf organizes special session at CMS meeting.
  • 6 June: Rob talks at CMS conference.
  • 13 June: Organizational meeting and general discussion.
  • 16 June, 1:30 pm, MC 5158A: Achim Kempf talks on QCD in Sci. Comp./Comp. Math group.
  • 20 June: AG, AS, RM and YH report on CMS conference.
  • 29 June: Rob reports on CMS conference, reviewing the adiabatic theorem in quantum computing.
  • 30 June, 1:30 pm, MC 5158A: Achim Kempf talks on QCD in Sci. Comp./Comp. Math group.
  • 4 July: Yufang talks on Symmetric vs self-adjoint operators and sampling I
  • 11 July: Yufang talks on Symmetric vs self-adjoint operators and sampling II
  • 18 July: David on Quantum dissipative systems
  • 25 July, 2:00 pm, Bob Room at PI: David, Inflation and violation of Bell inequalities
  • 26 July, 1:30pm, MC 5136: Sasha, Genetic algorithms
  • 2 August: Cedric, Decoherence
  • 8 August: Cedric finishes decoherence and Yufang and Adeel talk on self-adoint extensions and sampling, and vacuum fluctuations.
  • 11 August: Adeel and Yufang present at the summer student conference.
  • 12 August, 1:00 pm: Cedric finishes on noiseless subsystems.
  • August 12, 1:30 pm: Discussion on decoherence with visitor Dr. Jens Eisert (Potsdam).
  • 13-27 August: Achim Kempf in Europe.
  • 29 August: Joe reviews quantum to classical transition.
  • 8 September: Joe reviews decoherence.

Visitors

  • B. Bodmann (University of Texas), end of May
  • Prof. Robert Brout, (University of Bruxelles), mid-July to mid-August

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Winter 2005

  • January 31: Sasha, From crystals to quasicrystals
  • February 4: David, Growing lattices in cosmology
  • February 10: Rob, Aspects of sampling theory I
  • February 14: Rob, Aspects of sampling theory II
  • February 21: Rob, Aspects of sampling theory III
  • February 28: Sasha, Euler-Maclaurin
  • March 3: Achim Kempf talks at Guelph Math student club (1:00 pm) and at Guelph Math Colloquium, (3:00 pm).
  • March 7: Sasha, Euler Maclaurin
  • March 21: Sasha reports on his visit to CRM Montreal.
  • March 28: David, Coherent states
  • April 4: David, Squeezed states
  • April 25, MC 5136: Sasha, Path integration

Visitors

  • Prof. J. Patera (CRM and University of Montreal), mid-January
  • Prof. R. Brout (University Libre de Bruxelles), end of January/early February and all of April
  • G. Mangano (University of Naples, Italy and Syracuse, New York), mid-March
  • Prof. R. Easther (Yale University), mid-March

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Fall 2004

  • September 20: group is at COSMO-04.
  • September 27: conference reviews.
  • October 4: conference reviews.
  • October 11: holiday (Thanksgiving).
  • October 12: Achim Kempf talks at Guelph.
  • October 18: Larissa on backreaction.
  • October 25: Sven on backreaction.
  • November 1: David on introducing aspects of inflation.
  • November 8: David on squeezed states in inflation.
  • November 15: David on temporal coherence of inflationary fluctuations.
  • November 22: David on quantum to classical transition.
  • November 29: David on decoherence in inflation.

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Spring/summer 2004

  • May 3: Bernhard Bodmann on measures of entropy.
  • May 10: Not available.
  • May 17: Tom on the Casimir effect.
  • May 24: holiday (Victoria day).
  • May 31: Tyler on decoherence.
  • June 7: Rob on topics in sampling theory.
  • June 18, 11:00 am: reports on Winnipeg conference.
  • July 5: Sasha reports on Winnipeg conference.
  • July 12: Larissa on aspects of QFT I.
  • July 19: Larissa on aspects of QFT II.
  • July 26: Tom on aspects of phi^4 theory.
  • August 3: Tom on Feynman rules.
  • August 9: Sasha on the genetic code.
  • August 19: Tom on Casimir effect.
  • August 23: Larissa on path integral in QFT (I).
  • August 30: Sven on path integral in QFT (II).
  • September 7: Rob on back reaction.
  • September 13: discussion.

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Winter 2004

  • February 9: Sasha on negative entropy.
  • February 16: Rob on sampling I.
  • February 23: Rob on sampling II.
  • March 1: Tom on vacuum fluctuations.
  • March 8: Matt on superoscillations.
  • March 15: Rob on mode creation mechanism.
  • March 22: Rob (20 minutes) and Tyler on Q. info.
  • March 29: Larissa on singularity in mode equation.
  • April 5: Amjad on the adiabatic theorem.

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