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SUMMARY:Recent results in 87Rb box trap - Dr Jinyi Zhang \, University of 
 Cambridge 
DTSTART:20181126T153000Z
DTEND:20181126T163000Z
UID:TALK115291@talks.cam.ac.uk
CONTACT:Kayleigh Dunn
DESCRIPTION:Collective excitation or quasiparticle is the key feature of m
 any-body quantum systems. In spite of the rapid progresses in the field of
  the collective excitation and its damping in ultracold atom system\, most
  of the trapping potentials studied up to now are based on harmonic trap. 
 In this talk\, I introduce a new nonlinear damping mechanism in the lowest
 -lying excitation\, based on continually shaking quantum gases in a unifor
 m box trap. We observe power-scaling for damping rate\, and propose a mini
 mal model to elucidate the nonlinear damping behaviour.
LOCATION:Ryle Seminar Room (930) 
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