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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2822
DTSTART:20131205T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260412T041604Z
LAST-MODIFIED:20131122T151342Z
LOCATION:5310 Chamberlin
SUMMARY:Non-equilibirum Dynamics with Cold Polar Molecules: Glasses an
 d the Hexatic Phase\, R. G. Herb Condensed Matter Seminar\, Dr. Wolfga
 ng Lechner\, University of Innsbruck
DESCRIPTION:The realization of cold ensembles of polar molecules has o
 pened a new pathway to explore the dynamics of quantum many body syste
 ms with strong\, long-range and anisotropic dipolar interactions. Whil
 e theoretical studies have so far focused on the equilibrium phases in
  the highly degenerate quantum regime \, I will focus in my talk on no
 n-equilibirum dynamics in the regime where quantum and thermal fluctua
 tions are of the same order of magnitude. I will present two proposals
 : i.) a study on the glass transition in the presence of quantum fluct
 uations and ii.) a study on quantum fluctuations in the hexatic phase.
  i.) I will show\, how the glass phase can be prepared in a bilayer sy
 stem of ultracold dipolar molecules and present results on classical a
 nd quantum glassy behavior\, characterized by long tails in the relaxa
 tion time and dynamical heterogeneity. I will also present experimenta
 l accessible order parameters based on marker molecules\, distinguishe
 d by properly chosen internal levels\, and find quantum features of dy
 namical heterogeneity. ii.) The hexatic phase is an intermediate phase
  in two dimensional systems when going from the crystal to the liquid 
 phase. I will present results on the influence of quantum fluctuations
  on the nature of the hexatic phase and methods that allow one to meas
 ure these effects in a setup with polar molecules. 
URL:https://www.physics.wisc.edu/events/?id=2822
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