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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3090
DTSTART:20131031T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260314T132806Z
LAST-MODIFIED:20131022T180951Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Robust\, self-consistent\, closed-form tomography of quantum l
 ogic gates on a trapped ion qubit\, R. G. Herb Condensed Matter Semina
 r\, John Gamble\, Sandia National Laboratory
DESCRIPTION:We introduce and demonstrate experimentally: (1) a framewo
 rk called "gate set tomography" (GST) for self-consistently characteri
 zing an entire set of quantum logic gates on a black-box quantum devic
 e\; (2) an explicit closed-form protocol for linear-inversion gate set
  tomography (LGST)\, whose reliability is independent of pathologies s
 uch as local maxima of the likelihood\; and (3) a simple protocol for 
 objectively scoring the accuracy of a tomographic estimate without ref
 erence to target gates\, based on how well it predicts a set of testin
 g experiments. We use gate set tomography to characterize a set of Cli
 fford-generating gates on a single trapped-ion qubit\, and compare the
  performance of (i) standard process tomography\; (ii) linear gate set
  tomography\; and (iii) maximum likelihood gate set tomography. arXiv:
 1310.4492
URL:https://www.physics.wisc.edu/events/?id=3090
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