ENTROPY IN SCALAR O(N) MODEL WITH A SPONTANEOUSLY BROKEN SYMMETRY
文献类型：期刊论文
| 作者 | Li BC(李宝春); Li, BC; Wang, LL
|
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
 |
| 出版日期 | 2009 |
| 卷号 | 24期号:30页码:5725-5736 |
| 关键词 | Entropy scalar O(N) model spontaneously broken symmetry |
| 通讯作者 | [Li, Bao-Chun] Shanxi Univ, Dept Phys, Taiyuan 030006, Shanxi, Peoples R China ; [Li, Bao-Chun] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Wang, Li-Li] Shanxi Univ, Dept Math, Coll Business, Taiyuan 030031, Shanxi, Peoples R China |
| 英文摘要 | We investigate the entropy in a scalar O(N) model with a spontaneously broken symmetry. The Cornwall-Jackiw-Tomboulis formalism is applied to derive the entropy in the Hartree and Hartree-Fock approximations. In contrast to the Hartree approximation where the particles are quasiparticles with vanishing decay width, the Hartree-Fock approximation contains exchange contributions, which lead to nonzero decay width. We find that the sunset diagrams contribution is very small. Furthermore, the decay widths from these diagrams are discussed in the weak and strong coupling cases. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272918000011 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240043]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li BC,Li, BC,Wang, LL. ENTROPY IN SCALAR O(N) MODEL WITH A SPONTANEOUSLY BROKEN SYMMETRY[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2009,24(30):5725-5736. |
| APA | 李宝春,Li, BC,&Wang, LL.(2009).ENTROPY IN SCALAR O(N) MODEL WITH A SPONTANEOUSLY BROKEN SYMMETRY.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,24(30),5725-5736. |
| MLA | 李宝春,et al."ENTROPY IN SCALAR O(N) MODEL WITH A SPONTANEOUSLY BROKEN SYMMETRY".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 24.30(2009):5725-5736. |
入库方式： OAI收割
来源：高能物理研究所
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