2021
DOI: 10.48550/arxiv.2103.07255
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Determination of the critical exponents in dissipative phase transitions: Coherent anomaly approach

Jiasen Jin,
Wen-Bin He,
Fernando Iemini
et al.

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. 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 in two dimensions obtaining good … Show more

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