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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3070
DTSTART:20131107T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T212115Z
LAST-MODIFIED:20131106T154741Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Ultracold atoms in synthetic gauge fields: Novel phases and dy
 namics\, R. G. Herb Condensed Matter Seminar\, Arun Paramekanti\, Univ
 ersity of Toronto
DESCRIPTION:Experimental developments in the field of ultracold atomic
  gases<br>
\nhave enabled the creation of artificial Lorentz forces an
 d spin-orbit coupling. The combination of such "synthetic gauge fields
 " and strong correlations in an optical lattice is shown<br>
\nto lead
  to novel phases including Mott insulators which support loop current 
 orders and magnetic skyrmion crystals. These bosonic chiral Mott insul
 ators are analogous to vector chiral phases of frustrated magnets. We 
 show that studying quantum quench<br>
\ndynamics yields a  particularl
 y transparent route to imaging such current orders\, enabling the dete
 ction of bulk equilibrium currents as well as topological chiral edge 
 currents. Similar<br>
\nideas are also shown to be applicable to orbit
 al states of such ultracold atoms\, leading to chiral orbital Bose liq
 uid states. Such complex orbital order can be uncovered using quenches
 <br>
\nwhich lead to orbital dynamics\, analogous to NMR pulse experim
 ents that probe spin dynamics.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=3070
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