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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-87@lptms.universite-paris-saclay.fr
DTSTART:20130108T110000Z
DTEND:20130108T120000Z
DTSTAMP:20121204T161453Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-j-bonart/
SUMMARY:Séminaire du LPTMS: J. Bonart - LPTMS\, salle 201\, 2ème étage\,
  Bât 100\, Campus d'Orsay - 8 Jan 13 11:00
DESCRIPTION:Impurties in trapped one-dimensional quantum liquids\nJulius Bo
 nart\, LPTHE\nRecent experiments with cold atoms on impurity dynamics imme
 rsed in trapped 1D quantum liquids have revealed an interesting interplay 
 between the dynamic polaronic impurity mass shift and the renormalization 
 of the optical potential. We show that the influence of the external trap 
 on the Bose gas leads to a steeper effective potential for the impurity. W
 e propose a framework in which this potential renormalization and the mass
  shift can be quantitatively understood by using a semi-classical theory o
 f density wave excitations in the Luttinger liquid. Then we present more r
 igorous results on the impurity dynamics which are obtained via the non eq
 uilibrium formalism of a quantum Brownian particle. We show that the obtai
 ned theoretical results reproduce well recent experimental data.\n
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
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  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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