Università Cattolica del Sacro Cuore

The second law of thermodynamics from symmetry and unitarity

Seminario  13 luglio 2017
Aula: Sala Riunioni -  Ore: 11.30
Via Musei 41, Brescia

The second law of thermodynamics from symmetry and unitarity

Introduce:
Prof. Giuseppe Nardelli
Università Cattolica del Sacro Cuore

Interviene:
Dott. Paolo GLORIOSO
University of Chicago

Abstract
I will show how the notion of entropy production emerges from basic properties of quantum field theory. For this purpose I will introduce a general non-equilibrium effective field theory of slow degrees of freedom of a quantum many-body system. The key ingredients are unitarity of the microscopic theory, and a Z_2 symmetry, which is associated to the presence of local equilibrium. As an example, I will show how the entropy current emerges from our recent effective field theory formulation of hydrodynamics.



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