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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1447
DTSTART:20090220T180000Z
DURATION:PT1H0M0S
DTSTAMP:20260420T041612Z
LAST-MODIFIED:20090210T224710Z
LOCATION:5310 Chamberlin
SUMMARY:Disorder-induced superfluid-to-insulator transition in an opti
 cal lattice\, R. G. Herb Condensed Matter Seminar\, Brian DeMarco\, Un
 iversity of Illinois at Urbana-Champaign
DESCRIPTION:We experimentally realize the disordered Bose-Hubbard mode
 l by introducing fine-grained disorder to ultra-cold atoms confined in
  an optical lattice.  Transport measurements reveal that the equivalen
 t of resistivity is unaffected in the quantum critical regime if the d
 isorder strength is less than or comparable to the Hubbard interaction
  energy U.  For extreme disorder\, i.e.\, much greater than U\, we obs
 erve a disorder-induced superfluid-to-insulator transition.
URL:https://www.physics.wisc.edu/events/?id=1447
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