Speaker: Davide Rossini (Dipartimento di Fisica – Universita` di Pisa)
Title: “Universality in the equilibrium and out-of-equilibrium behavior close to quantum phase transitions”
Abstract:
The recent experimental advances in the field of quantum simulation
have enabled a wealth of amazing possibilities to study strongly
correlated quantum systems. I will first give a brief overview of the
open questions in the field and of the most promising platforms aimed
at addressing such issues. I will then present a general dynamic
scaling theory for the equilibrium and out-of-equilibrium behavior
of quantum many-body systems in proximity of quantum transitions
of any order. In particular, I will highlight a nontrivial competition
that may arise between the coherent dynamics at quantum transitions
and the dissipative perturbations, which can be formalized through
the finite-size scaling framework.