Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines cond-mat.stat-mech
Date Mercredi 25 Novembre 2020
Heure 14:30
Institut LPENS
Nom de l'orateur Schiró
Prenom de l'orateur Marco
Addresse email de l'orateur
Institution de l'orateur
Titre Unconventional Phase Transitions in Open Markovian Quantum Systems
Résumé A number of experimental platforms for quantum simulations, from ultracold atoms to Rydberg and circuit QED arrays, can be modeled as open Markovian quantum many-body systems, where coherent (Hamiltonian) evolution competes with dissipative processes due to external environments or stochastic measurements. Out of this competition, a variety of non-trivial stationary states and dynamical behavior emerge and novel critical phenomena arise, which are unique to this open setting. In this talk I will review recent progress in this field and present our results on prototype models for strongly correlated open Markovian systems, displaying genuine nonequilibrium effects such as finite-frequency criticality and breaking of time-translational symmetry (aka quantum time-crystals), quantum multistability, or non-hermitian phase transitions.
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