BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-4850
DTSTART:20181108T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T075828Z
LAST-MODIFIED:20181106T143656Z
LOCATION:5310 Chamberlin
SUMMARY:Interaction-induced time symmetry breaking in periodically dri
 ven oscillators\, R. G. Herb Condensed Matter Seminar\,  Mark Dykman\,
   Michigan State University
DESCRIPTION:Quantum dynamics of a periodically driven system is descri
 bed in terms of the Floquet states. Generally\, if the system is in a 
 Floquet state\, its dynamical variables oscillate with the period of t
 he driving. Recently much interest have attracted systems where this d
 iscrete time-translation symmetry is broken\, the “time crystal” e
 ffect. Nonlinear oscillators\, including nanomechanical systems and mo
 des in electromagnetic cavities\, provide a natural platform for study
 ing this effect. I will discuss the classical and quantum phase transi
 tions to the broken-symmetry state in systems of coupled oscillators. 
 Time permitting\, and for completeness\, I will also show time-symmetr
 y breaking in the simplest quantum system\, a qubit.
\n
URL:https://www.physics.wisc.edu/events/?id=4850
END:VEVENT
END:VCALENDAR