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SUMMARY:Bosons in Synthetic Gauge Fields - Ryan Barnett\, Imperial College
DTSTART:20131107T141500Z
DTEND:20131107T151500Z
UID:TALK47468@talks.cam.ac.uk
CONTACT:Gareth Conduit
DESCRIPTION:Condensates of multicomponent bosons offer rich physical syste
 ms due their extra degrees of freedom originating\, for instance\, from in
 ternal spin states. In recent years\, there have been considerable experim
 ental advances in creating "synthetic" gauge fields and spin orbit couplin
 gs using optical dressing techniques in such multicomponent condensates.  
 In the first part of this talk\, I will consider the conceptually simple q
 uestion of how bosons with Rashba spin-orbit coupling condense. In particu
 lar I will discuss how quantum fluctuations uniquely determine the ground 
 state through the mechanism of order by disorder. I will then move on to i
 ntroduce the notion of SU(3) spin-orbit coupling in ultracold atoms which 
 arises for three-component bosons in the presence of synthetic gauge field
 s. In particular\, I will describe how it is possible to realize a Chern i
 nsulator with a spatially homogeneous gauge field.
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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