Symmetry breaking and competition effect in phase transitions

被引：2

作者：

Yang, Shuang-Liang ^{[1
]}

Luo, Wei ^{[1
]}

Badshah, Fazal ^{[2
]}

Zhou, Yuan ^{[1
]}

Fu, Yan-Hua ^{[1
]}

Tong, Rui ^{[1
]}

Wu, Cheng-Rui ^{[1
]}

Hu, Yong-Jin ^{[1
]}

Chen, Jie ^{[1
]}

Zeng, Wei-You ^{[1
]}

机构：

[1] Hubei Univ Automot Technol, Sch Math Phys & Optoelect Engn, Hubei Key Lab Energy Storage & Power Battery, Shiyan 442002, Peoples R China

[2] Hubei Univ Automot Technol, Sch Elect & Informat Engn, Shiyan 442002, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2023年 / 35卷 / 27期

基金：

美国国家科学基金会; 中国博士后科学基金;

关键词：

quantum phase transitions; competition effect; systemic symmetry breaking; non-Hermitian Hamiltonian;

D O I：

10.1088/1361-648X/acc9f5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

This study is started from a photon-magnon model with a competition effect of the level attraction and repulsion, its Hermiticity is mainly decided by a phase-dependent and asymmetric coupling factor, namely f = 0 for Hermitian and f=p f can function the protective effect on quantum phase transitions (QPTs), and the new tricritical points can not only be modulated by this nonlinear drive, but also be influenced by the dissipation and the collective decoherence. Secondly, this competition effect can also induce a reversal of the value of order parameters between the positive and negative. This study can also bring more important results of QPTs toward the issue of symmetry breaking and non-Hermiticity.

引用

页数：9

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