期刊
PHYSICAL REVIEW B
卷 97, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.97.035103
关键词
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资金
- CINECA award under ISCRA initiative
- ERC via Consolidator Grant CORPHO [616233]
- EU-QUIC
- CRF
- Singapore Ministry of Education
- SNS-Fondi interni
- Oxford Martin School
- National Natural Science Foundation of China [11605022]
- Natural Science Foundation of Liaoning Province [2015020110]
- Xinghai Scholar Cultivation Plan
- Fundamental Research Funds for the Central Universities
- CPR-QSYNC
We propose a generalization of the linked-cluster expansions to study driven-dissipative quantum lattice models, directly accessing the thermodynamic limit of the system. Our method leads to the evaluation of the desired extensive property onto small connected clusters of a given size and topology. We first test this approach on the isotropic spin-1/2 Hamiltonian in two dimensions, where each spin is coupled to an independent environment that induces incoherent spin flips. Then we apply it to the study of an anisotropic model displaying a dissipative phase transition from a magnetically ordered to a disordered phase. By means of a Pade analysis on the series expansions for the average magnetization, we provide a viable route to locate the phase transition and to extrapolate the critical exponent for the magnetic susceptibility.
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