RQI Seminar | Cameron Bunney, Circular motion Unruh effect: in spacetime and in the laboratory

Thursday, May 22, 2025 11:00 am - 12:00 pm EDT (GMT -04:00)

MC 5501

For those of you who cannot attend in person, you can also join remotely throughÌýZoomÌýwith the following information:Ìý

Speaker

Cameron Bunney (University of Nottingham)

Title

Circular motion Unruh effect: in spacetime and in the laboratory

Abstract

The Unruh effect is the prediction that a uniformly linearly accelerating observer with proper acceleration a will experience the Minkowski vacuum as if it were a thermal bath at temperature ²¹/2Ï€. This thermality can be seen from a variety of perspectives, including a purely geometric picture, a quantum-field-theoretic picture, and through an operational particle-detector picture. By using particle detectors, however, one may extend the notion of acceleration-dependent response to uncover a variety of Unruh-like phenomena, including the circular motion Unruh effect. In this talk, I shall present an introduction to the Unruh effect and its various guises, before specialising to the circular motion Unruh effect and discussing the modelling of experimentally necessary features.

About the speaker: Cameron is an EPSRC Postdoctoral Pathway Fellow at the University of Nottingham working on analogue gravity systems within the Gravity Laboratory. Prior to this, Cameron completed his PhD at the University of Nottingham under the joint supervisionÌý of Jorma Louko and Silke Weinfurtner working on the circular motion Unruh effect from both theoretical and experimental perspectives. Beyond his work bridging theory with experiment in the field of RQI, Cameron is also an accomplished musician with experience composing in addition to performing across a range of instruments.

Note: We encourage you to join us 15 minutes early for coffee and snacks before the talk begins.