Driven-Dissipative Criticality within the Discrete Truncated Wigner Approximation

verfasst von

Vijay Pal Singh, Hendrik Weimer

Abstract

We present an approach to the numerical simulation of open quantum many-body systems based on the semiclassical framework of the discrete truncated Wigner approximation. We establish a quantum jump formalism to integrate the quantum master equation describing the dynamics of the system, which we find to be exact in both the noninteracting limit and the limit where the system is described by classical rate equations. We apply our method to simulation of the paradigmatic dissipative Ising model, where we are able to capture the critical fluctuations of the system beyond the level of mean-field theory.

Organisationseinheit(en)

QuantumFrontiers
Institut für Theoretische Physik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)

Externe Organisation(en)

Universität Hamburg

Typ

Artikel

Journal

Physical Review Letters

Band

128

ISSN

0031-9007

Publikationsdatum

17.05.2022

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2108.07273 (Zugang: Offen)
https://doi.org/10.1103/PhysRevLett.128.200602 (Zugang: Geschlossen)