BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Dynamics of quantum thermalization - Alexander Altland\, Institute
  of Theoretical Physics\, Cologne\, Germany
DTSTART:20120614T131500Z
DTEND:20120614T144500Z
UID:TALK37319@talks.cam.ac.uk
CONTACT:Joe Bhaseen
DESCRIPTION:We will discuss the dynamical stages of equilibration of unita
 ry quantum dynamics under conditions of classical non-integrability. Emplo
 ying the Dicke model (a large spin coupled to an oscillator) as a paradigm
 atic example\, it will be shown how a constructive description of the  the
 rmalization process is facilitated by the Glauber Q or Husimi function\, f
 or which the evolution equation turns out to be of Fokker-Planck type. The
  equation describes a competition of classical drift and quantum diffusion
 . By this mechanism the system follows a 'quantum smoothened' approach to 
 equilibrium\, which avoids the notorious singularities inherent to classic
 al nonlinear flows. 
LOCATION:TCM Seminar Room\, Cavendish Laboratory
END:VEVENT
END:VCALENDAR