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Dong, GH; Fang, YN; Sun, CP; Sun, CP (reprint author), Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China.; Sun, CP (reprint author), Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China.
Quantifying Spontaneously Symmetry Breaking of Quantum Many-Body Systems
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
语种英语
关键词Spontaneous Symmetry Breaking Bose-einstein Condensation Superconductor Group Theory
摘要Spontaneous symmetry breaking is related to the appearance of emergent phenomena, while a non-vanishing order parameter has been viewed as the sign of turning into such symmetry-breaking phase. We study the spontaneous symmetry breaking in the conventional superconductor and Bose Einstein condensation with a continuous measure of symmetry by showing that both the many-body systems can be mapped into the many spin model. We also formulate the underlying relation between the spontaneous symmetry breaking and the order parameter quantitatively. The degree of symmetry stays unity in the absence of the two emergent phenomena, while decreases exponentially at the appearance of the order parameter which indicates the inextricable relation between the spontaneous symmetry and the order parameter.
2017
卷号68期号:4页码:405-411
学科领域Physics
DOIhttp://dx.doi.org/10.1088/0253-6102/68/4/405
项目资助者National 973 Program [2014CB921403] ; National 973 Program [2014CB921403] ; National 973 Program [2014CB921403] ; National 973 Program [2014CB921403] ; National Key Research and Development Program [2016YFA0301201] ; National Key Research and Development Program [2016YFA0301201] ; National Key Research and Development Program [2016YFA0301201] ; National Key Research and Development Program [2016YFA0301201] ; National Natural Science Foundation of China [11421063, 11534002] ; National Natural Science Foundation of China [11421063, 11534002] ; National Natural Science Foundation of China [11421063, 11534002] ; National Natural Science Foundation of China [11421063, 11534002]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21955
专题理论物理所科研产出_SCI论文
通讯作者Sun, CP (reprint author), Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China.; Sun, CP (reprint author), Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China.
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GB/T 7714
Dong, GH,Fang, YN,Sun, CP,et al. Quantifying Spontaneously Symmetry Breaking of Quantum Many-Body Systems[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2017,68(4):405-411.
APA Dong, GH,Fang, YN,Sun, CP,Sun, CP ,&Sun, CP .(2017).Quantifying Spontaneously Symmetry Breaking of Quantum Many-Body Systems.COMMUNICATIONS IN THEORETICAL PHYSICS,68(4),405-411.
MLA Dong, GH,et al."Quantifying Spontaneously Symmetry Breaking of Quantum Many-Body Systems".COMMUNICATIONS IN THEORETICAL PHYSICS 68.4(2017):405-411.
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