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Thermalization and dissipation in out-of-equilibrium quantum systems: A perturbative renormalization group approach

Contributors

Mitra, Aditi; Giamarchi, Thierry

Published in

Physical review. B, Condensed matter and materials physics, vol. 85, no. 7

Publication date

2012

Abstract

A perturbative renormalization group approach is employed to study the effect of a periodic potential on a system of one-dimensional bosons in a nonequilibrium steady state due to an initial interaction quench. The renormalization group flows are modified significantly from the well-known equilibrium Berezinski-Kosterlitz-Thouless form. They show several new features such as a generation of an effective temperature, generation of dissipation, as well as a change in the location of the quantum critical point separating the weak- and strong-coupling phases. Detailed results on the weak-coupling side of the phase diagram are presented, such as the renormalization of the parameters and the asymptotic behavior of the correlation functions. The physical origin of the generated temperature and friction is discussed.

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

MITRA, Aditi, GIAMARCHI, Thierry. Thermalization and dissipation in out-of-equilibrium quantum systems: A perturbative renormalization group approach. In: Physical review. B, Condensed matter and materials physics, 2012, vol. 85, n° 7. doi: 10.1103/PhysRevB.85.075117

Main files (1)

Article (Published version)

Identifiers

Journal ISSN

1098-0121
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398downloads

Technical informations

Creation

22/04/2014 15:16:00

First validation

22/04/2014 15:16:00

Update

14/03/2023 21:09:11

Status update

14/03/2023 21:09:10

Last indexation

30/10/2024 16:57:30
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