Particle density in zero temperature symmetry restoring phase transitions in four-fermion interaction models
文献类型：期刊论文
| 作者 | Zhou, BR |
| 刊名 | Communications in theoretical physics
 |
| 出版日期 | 2004-02-15 |
| 卷号 | 41期号:2页码:247-251 |
| 关键词 | Gross-neveu and nambu-jona-lasinio models Symmetry restoration at zero temperature and high density Particle number density First- and second-order phase transitions |
| ISSN号 | 0253-6102 |
| 通讯作者 | Zhou, br() |
| 英文摘要 | By means of critical behaviors of the dynamical fermion mass in four-fermion interaction models, we show by explicit calculations that when t = 0 the particle density will have a discontinuous jumping across the critical chemical potential it, in 2d and 3d gross-neveu (gn ) model and these physically explain the first-order feature of the corresponding symmetry restoring phase transitions. for the second-order phase transitions in the 3d gn model when t --> 0 and in 4d nambu-joria-lasinio (njl) model when t = 0, it is proven that the particle density itself will be continuous across mu(c), but its derivative over the chemical potential p will have a discontinuous jumping., the results give a physical explanation of implications of the tricritical point (t, mu) = (0, mu(c),) in the 3d gn model. the discussions also show effectiveness of the critical analysis approach of phase transitions. |
| WOS关键词 | GROSS-NEVEU MODEL ; FINITE-TEMPERATURE ; ORDER-PARAMETER ; BREAKING ; RESTORATION ; CONDENSATE ; GAUGE |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000189186900017 |
| 出版者 | INT ACADEMIC PUBL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376947 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou, BR |
| 作者单位 | 1.Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100039, Peoples R China 2.CCAST, World Lab, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, BR. Particle density in zero temperature symmetry restoring phase transitions in four-fermion interaction models[J]. Communications in theoretical physics,2004,41(2):247-251. |
| APA | Zhou, BR.(2004).Particle density in zero temperature symmetry restoring phase transitions in four-fermion interaction models.Communications in theoretical physics,41(2),247-251. |
| MLA | Zhou, BR."Particle density in zero temperature symmetry restoring phase transitions in four-fermion interaction models".Communications in theoretical physics 41.2(2004):247-251. |
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来源：中国科学院大学
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