Quantifying Spontaneously Symmetry Breaking of Quantum Many-Body Systems
文献类型：期刊论文
| 作者 | 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.
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 2017 |
| 卷号 | 68期号:4页码:405-411 |
| 关键词 | Spontaneous Symmetry Breaking Bose-einstein Condensation Superconductor Group Theory |
| DOI | http://dx.doi.org/10.1088/0253-6102/68/4/405 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21955]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 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. |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
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