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SUMMARY:Dissipative &quot\;time crystals&quot\; - Dr. Achilleas Lazarides\
 , Loughborough University
DTSTART:20190530T131500Z
DTEND:20190530T141500Z
UID:TALK119275@talks.cam.ac.uk
CONTACT:Katarzyna Macieszczak
DESCRIPTION:Discrete time crystals is the (contentious) name given to many
 -body systems displaying long-time dynamics that is sub-harmonic with resp
 ect to a driving frequency. While these were first discussed in closed qua
 ntum systems a few years ago\, recent work (partly motivated by experiment
 s) has focussed on including non-unitary effects such as due to an externa
 l environment ("dissipation"). In this talk I will describe one of the uni
 tary models\, then discuss a general framework for subharmonic oscillation
 s stabilised by  dissipative dynamics. The unitary and non-unitary phenome
 na are conceptually distinct.
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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