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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1476
DTSTART:20090303T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260506T181251Z
LAST-MODIFIED:20090224T155140Z
LOCATION:5310 Chamberlin
SUMMARY:Radio Frequency Spectroscopy in Ultra-cold Fermi gases Undergo
 ing BCS-BEC Crossover\, R. G. Herb Condensed Matter Seminar\, Yan He\,
  University of Chicago
DESCRIPTION:In recent years\, ultra-cold atoms opened an exciting new 
 direction of condensed matter physics. Radio frequency spectroscopy pr
 ovides an important tool to understand energy gap and quasi-particle d
 ispersion in ultra-cold Fermi gases. Here we present a systematic stud
 y of the RF spectra of Fermi gases in the BCS-BEC crossover. We discus
 s the effects of traps\, population imbalance\, final state interactio
 ns over the entire range of temperatures and compare theory with exper
 iment. The result shows that this broad range of phenomena can be acco
 mmodated within the BCS-Leggett description of BCS-BEC crossover.
URL:https://www.physics.wisc.edu/events/?id=1476
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