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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-9000
DTSTART:20250306T160000Z
DTEND:20250307T000000Z
DTSTAMP:20260413T170705Z
LAST-MODIFIED:20250228T163026Z
LOCATION:5310 Chamberlin
SUMMARY:Quantum many-body scars in Rydberg atom simulators\, R. G. Her
 b Condensed Matter Seminar\, Ian Mondragon Shem\, Northwestern
DESCRIPTION:Quantum simulators have led to significant insight into th
 e non-equilibrium behavior of quantum many-body systems. Programmable 
 Rydberg atom simulators\, in particular\, have uncovered the existence
  of persistent oscillations of local observables due to the emergence 
 of quantum many-body scars. The conventional understanding of these sc
 ar states purports that they form a small subset of non-ergodic eigens
 tates embedded in a thermal spectrum.  In this talk\, we will show tha
 t the PXP model\, which closely describes strongly interacting Rydberg
  atoms\, can exhibit many more scarred states than had been previously
  identified. We will present evidence that the magnetization and tempo
 ral correlators of the system exhibit oscillations for almost any init
 ial product state with a frequency close to that of the conventional s
 et of scars. We will argue that these oscillations arise due to multip
 le sets of scars that satisfy an approximate su(2) algebra. We will fu
 rther explore the impact that this structure has on the system's dynam
 ics in the presence of disorder. Finally\, we will discuss a strategy 
 to detect the presence of these new scarred states using quantum typic
 ally.
URL:https://www.physics.wisc.edu/events/?id=9000
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