Quantification of Symmetry
文献类型：期刊论文
| 作者 | Sun, CP ; Fang, YN; Dong, GH; Zhou, DL; 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, Peoples R China.
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 2016 |
| 卷号 | 65期号:4页码:423-433 |
| 关键词 | Symmetry Breaking Group Theory Degree Of Symmetry Duality |
| 英文摘要 | Symmetry is conventionally described in a polarized manner that the system is either completely symmetric or completely asymmetric. Using group theoretical approach to overcome this dichotomous problem, we introduce the degree of symmetry (DoS) as a non-negative continuous number ranging from zero to unity. DoS is defined through an average of the fidelity deviations of Hamiltonian or quantum state over its transformation group G, and thus is computable by making use of the completeness relations of the irreducible representations of G. The monotonicity of DoS can effectively probe the extended group for accidental degeneracy while its multi-valued natures characterize some (spontaneous) symmetry breaking. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21705]  |
| 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, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Sun, CP,Fang, YN,Dong, GH,et al. Quantification of Symmetry[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2016,65(4):423-433. |
| APA | Sun, CP,Fang, YN,Dong, GH,Zhou, DL,Sun, CP ,&Sun, CP .(2016).Quantification of Symmetry.COMMUNICATIONS IN THEORETICAL PHYSICS,65(4),423-433. |
| MLA | Sun, CP,et al."Quantification of Symmetry".COMMUNICATIONS IN THEORETICAL PHYSICS 65.4(2016):423-433. |
入库方式： OAI收割
来源：理论物理研究所
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