Art of spin decomposition
文献类型：期刊论文
| 作者 | Chen, Xiang-Song1,2; Sun, Wei-Min2,3,4; Wang, Fan2,3,4; Goldman, T.5 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2011-04-05 |
| 卷号 | 83期号:7 |
| 英文摘要 | We analyze the problem of spin decomposition for an interacting system from a natural perspective of constructing angular-momentum eigenstates. We split, from the total angular-momentum operator, a proper part which can be separately conserved for a stationary state. This part commutes with the total Hamiltonian and thus specifies the quantum angular momentum. We first show how this can be done in a gauge-dependent way, by seeking a specific gauge in which part of the total angular-momentum operator vanishes identically. We then construct a gauge-invariant operator with the desired property. Our analysis clarifies what is the most pertinent choice among the various proposals for decomposing the nucleon spin. A similar analysis is performed for extracting a proper part from the total Hamiltonian to construct energy eigenstates. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 关键词[WOS] | NUCLEON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289193800001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/15967]  |
| 专题 | 紫金山天文台_南极天文中心 |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China 3.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 4.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China 5.Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA |
| 推荐引用方式 GB/T 7714 | Chen, Xiang-Song,Sun, Wei-Min,Wang, Fan,et al. Art of spin decomposition[J]. PHYSICAL REVIEW D,2011,83(7). |
| APA | Chen, Xiang-Song,Sun, Wei-Min,Wang, Fan,&Goldman, T..(2011).Art of spin decomposition.PHYSICAL REVIEW D,83(7). |
| MLA | Chen, Xiang-Song,et al."Art of spin decomposition".PHYSICAL REVIEW D 83.7(2011). |
入库方式： OAI收割
来源：紫金山天文台
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