BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-7919
DTSTART:20221117T160000Z
DTEND:20221118T000000Z
DTSTAMP:20260414T152656Z
LAST-MODIFIED:20221025T181619Z
LOCATION:5310 Chamberlin
SUMMARY:Local observables and Loschmidt echo of quenched paired fermio
 nic superfluids\, R. G. Herb Condensed Matter Seminar\, Victor Gurarie
 \, UC Boulder
DESCRIPTION:We describe time evolution of quenched paired fermionic s-
 wave and p-wave superfluids. After reviewing some of the more establis
 hed results concerning the steady states they reach after the quench\,
  we discuss their Loschmidt echo. We demonstrate that conventional mea
 n field theory calculates classical echo instead of its quantum counte
 rpart\, and show how it should be modified to capture the full quantum
  Loschmidt echo. We use these results to show that the Loschmidt echo 
 of topological p-wave superconductors feature singularities periodical
 ly occurring in time\, while the Loschmidt echo of non topological s-w
 ave superconductors is free of singularities. 
URL:https://www.physics.wisc.edu/events/?id=7919
END:VEVENT
END:VCALENDAR