Average diagonal entropy in nonequilibrium isolated quantum systems
Year: 2016
Type: article
Abstract: The diagonal entropy was introduced as a good entropy candidate especially for isolated quantum systems out of equilibrium. Here we present an analytical calculation of the average diagonal entropy for systems undergoing unitary evolution and an external perturbation in the form of a cyclic quench. We compare our analytical findings with numerical simulations of various quantum systems. Our calculations elucidate various heuristic relations proposed recently in the literature.
Source: Physical review. E
Authors: Olivier Giraud, Ignacio García-Mata
Institutions: Université Paris-Sud, Centre National de la Recherche Scientifique, Université Paris-Saclay, Laboratoire de Physique Théorique et Modèles Statistiques, Consejo Nacional de Investigaciones Científicas y Técnicas, National University of Mar del Plata, Instituto de Investigaciones Físicas de Mar del Plata
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G2532370486, G5158385566, G8610652331
OpenAlex ID: W2297003728