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Quantum nonlocality and topological quantum phase transitions in the extended Ising chain

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成果类型:
期刊论文
作者:
Dong, Luzhao;Bao, Jia;Guo, Bin;Sun, Zhaoyu
通讯作者:
Bin Guo
作者机构:
[Guo, Bin; Bao, Jia; Dong, Luzhao] Wuhan Univ Technol, Dept Phys, Wuhan 430070, Peoples R China.
[Sun, Zhaoyu] Wuhan Polytech Univ, Sch Elect & Elect Engn, Wuhan 430023, Peoples R China.
通讯机构:
[Bin Guo] D
Department of Physics, Wuhan University of Technology, Wuhan 430070, People's Republic of China
语种:
英文
关键词:
energy spectra;extended Ising model;nonlocality;topological quantum phase transitions;winding number
期刊:
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN:
0953-8984
年:
2022
卷:
34
期:
42
页码:
425405
基金类别:
National Natural Science Foundation of China [11675124]; Fundamental Research Funds for the Central Universities [WUT: 2020IB021]
机构署名:
本校为其他机构
院系归属:
电气与电子工程学院
摘要:
We use two-site quantum nonlocality to identify the topological quantum phase transitions (TQPTs) of the extended Ising model driven by varying system parameters. We investigate how the system parameters, including the anisotropies of the nearest-neighbor and the next-nearest-neighbor spin pairs, the transverse magnetic field, and the three-spin interaction, affect the quantum nonlocality. We show that the nonlocality cannot mark any TQPTs while its first derivative can perfectly characterize the TQPTs. By making the influences of the thermal fluctuations and the site distance of spin pairs on...

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