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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-516@lptms.universite-paris-saclay.fr
DTSTART:20170418T110000Z
DTEND:20170418T120000Z
DTSTAMP:20170414T061346Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-maurizio-fagotti/
SUMMARY:Séminaire du LPTMS: Maurizio Fagotti - LPTMS\, salle 201\, 2ème 
 étage\, Bât 100\, Campus d'Orsay - 18 Avr 17 11:00
DESCRIPTION:Intermediate-time dynamics in 
out-of-equilibrium spin chains
 \nMaurizio Fagotti (LPT-ENS\, Paris)\nI discuss some aspects of quench dyn
 amics in quantum many-body systems. In the first part of the talk\, I pres
 ent an unusual mechanism of prethermalization. This is based on the presen
 ce of a symmetry of the pre-quench Hamiltonian which is spontaneously brok
 en at zero temperature and is explicitly broken by the post-quench Hamilto
 nian.  In the second part of the talk\, I focus on the non-equilibrium ti
 me evolution of piecewise homogeneous states. The inhomogeneity of the ini
 tial state gives rise to a peculiar intermediate-time dynamics that is cap
 tured by a hydrodynamic description. I present the solution to the dynamic
 s in the XXZ spin-1/2 chain and describe some remarkable properties of the
  profiles of charges and currents.\nReferences:\n\n	V. Alba and M. Fagotti
 \, Prethermalization at low temperature: the scent of a spontaneously brok
 en symmetry\, arXiv:1701.05552 (2017).\n	B. Bertini\, M. Collura\, J. De N
 ardis\, and M. Fagotti\, Transport in Out-of-Equilibrium XXZ Chains: Exact
  Profiles of Charges and Currents\,  Phys. Rev. Lett. 117\, 207201 (2016)
 .\n
CATEGORIES:seminars
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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