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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-191@lptms.universite-paris-saclay.fr
DTSTART:20131014T110000Z
DTEND:20131014T113000Z
DTSTAMP:20131011T091715Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/journal-club-vinc
 ent-michal/
SUMMARY:Journal-Club : Vincent Michal - LPTMS\, salle 201\, 2ème étage\, 
 Bât 100\, Campus d'Orsay - 14 Oct 13 11:00
DESCRIPTION:Dynamics of a quantum phase transition: exact solution of the q
 uantum Ising Model Jacek Dziarmaga\, PRL 95\, 245701 (2005)\nVincent Micha
 l (Post doc LPTMS)\n&nbsp\;\nIt will be based on the paper "Dynamics of a 
 quantum phase transition: exact solution of the quantum Ising Model"\, by 
 Jacek Dziarmaga\, PRL 95\, 245701 (2005).\nAbstract of the paper:\nThe Qua
 ntum Ising model is an exactly solvable model of quantum phase transition.
  This Letter gives an exact solution when the system is driven through the
  critical point at a finite rate. The evolution goes through a series of L
 andau-Zener level anticrossings when pairs of quasiparticles with opposite
  pseudomomenta get excited with a probability depending on the transition 
 rate. The average density of defects excited in this way scales like a squ
 are root of the transition rate. This scaling is the same as the scaling o
 btained when the standard Kibble-Zurek mechanism of thermodynamic second o
 rder phase transitions is applied to the quantum phase transition in the I
 sing model.
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  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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