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SEQUENCE:1
UID:UW-Physics-Event-5015
DTSTART:20190404T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260317T093231Z
LAST-MODIFIED:20190402T154329Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Quantum Advantage for Annealing\, R. G. Herb Condensed Matter 
 Seminar\, Dr. David Ferguson\, Northrop Grumman
DESCRIPTION:Analog annealing using superconducting circuits is a leadi
 ng candidate to establish a quantum advantage for computing problems o
 f application interest. This seminar will discuss some recent research
  thrusts in quantum annealing. The first topic will delve into new met
 hods to extract Pauli Hamiltonians using a variant of Bravyi’s Schri
 effer-Wolff technique. While this method has many compelling advantage
 s\, it also generates non-trivial holonomy of the Hilbert space over t
 he control parameter manifold. This path dependence of the effective H
 amiltonian presents both challenges and opportunities for analog contr
 ol of annealing systems. The next topic builds on this framework to fa
 cilitate a direct comparison between quantum and classical models of s
 uperconducting circuits using phase space techniques which enable a cl
 ear definition of a “Quantum Advantage for Annealing.” Finally\, l
 ooking to future capabilities\, a definition of non-stoquasticity will
  be presented along with an explanation of why it is relevant for quan
 tum annealing\, why typical superconducting qubits don’t have it\, a
 nd what sort of design changes are necessary to engineer qubits that a
 re simultaneously capable of annealing and generating strong non-stoqu
 astic interactions.
URL:https://www.physics.wisc.edu/events/?id=5015
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