Statistical Physics Group

Team 106, Jean Lamour Institute

                     
Home
Where
Staff
Publications
Seminars
Chronological
Speakers
Workshops
Rencontres
Schools
International
Working groups
Positions
Teaching

Group seminar

Intermediate-time dynamics in 
out-of-equilibrium spin chains
Maurizio Fagotti
LPT ENS
Thursday 06 April 2017 , 10h25
Salle de séminaire du groupe de Physique Statistique

In the first part of the talk, I consider the non-equilibrium time evolution of piecewise homogeneous states in the XXZ spin-1/2 chain. I overview the solution to the dynamics in the limit of large time and discuss some remarkable properties of the profiles of charges and currents. In the second part of the talk, I describe an unusual mechanism of prethermalization based on the presence of a symmetry of the pre-quench Hamiltonian which is spontaneously broken at zero temperature and is explicitly broken by the post-quench Hamiltonian. References: [1] B. Bertini, M. Collura, J. De Nardis, and M. Fagotti, Transport in Out-of-Equilibrium XXZ Chains: Exact Profiles of Charges and Currents, Phys. Rev. Lett. 117, 207201 (2016). [2] V. Alba and M. Fagotti, Prethermalization at low temperature: the scent of a spontaneously broken symmetry, arXiv:1701.05552 (2017)



Group seminar

Groupe "Connexions" : traduction Pauli 6/4/17
Equipe 106, Institut Jean Lamour
Thursday 06 April 2017 , 14h00
Salle de séminaire du groupe de Physique Statistique


Top