Related papers: Determination of the critical exponents in dissipative phase transitions: Coherent anomaly approach

Determination of the critical exponents in dissipative phase transitions: Coherent anomaly approach

URL: http://arxiv.org/abs/2103.07255v2
Date: Thu, 2 Dec 2021 01:27:27 GMT
Title: Determination of the critical exponents in dissipative phase transitions: Coherent anomaly approach
Authors: Jiasen Jin, Wen-Bin He, Fernando Iemini, Diego Ferreira, Ying-Dan Wang, Stefano Chesi, and Rosario Fazio
Abstract summary: We propose a generalization of the coherent anomaly method to extract the critical exponents of a phase transition occurring in the steady-state of an open quantum many-body system.
Score: 51.819912248960804
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We propose a generalization of the coherent anomaly method to extract the critical exponents of a phase transition occurring in the steady-state of an open quantum many-body system. The method, originally developed by Suzuki [J. Phys. Soc. Jpn. {\bf 55}, 4205 (1986)] for equilibrium systems, is based on the scaling properties of the singularity in the response functions determined through cluster mean-field calculations. We apply this method to the dissipative transverse-field Ising model and the dissipative XYZ model in two dimensions obtaining convergent results already with small clusters.

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