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URL:/institute-for-quantum-computing/events/iqc-student
 -seminar-featuring-junan-lin
SUMMARY:IQC Student Seminar featuring Junan Lin
CLASS:PUBLIC
DESCRIPTION:Summary \n\nCHARACTERIZING STATES AND MEASUREMENTS: PRINCIPLES 
 AND APPROACHES\n\nAbstract: The problem of separately characterizing stat
 e preparation\nand measurement (SPAM) processes has not been frequently di
 scussed in\nthe literature. In this talk\, I will first review the theoret
 ical\nchallenge behind SPAM characterization due to a gauge freedom\, and\
 nthen describe two different principles that can be applied to get\naround
  it. The first one can be understood as an effective propagation\nof state
  preparation noise from the target system to an ancillary\nqubit\, whereas
  the second one utilizes measurements and post-selection\nto reduce the st
 ate preparation noise and can be interpreted as a form\nof algorithmic coo
 ling. For the first method\, I will present\nexperimental and simulation d
 ata obtained from real quantum\nprocessors. For the second method\, I will
  analyze its overhead through\nan upper bound on the expected number of ru
 ns to achieve a given\nerror-reduction ratio. 
DTSTAMP:20250519T191909Z
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