Electrical neutrality and symmetry restoring phase transitions at high density in a two-flavor nambu-jona-lasinio model
文献类型：期刊论文
| 作者 | Wang Xiao-Ming; Zhou Bang-Rong |
| 刊名 | Communications in theoretical physics
 |
| 出版日期 | 2007-06-15 |
| 卷号 | 47期号:6页码:1081-1087 |
| ISSN号 | 0253-6102 |
| 关键词 | Normal quark matter Electrical neutrality Nambu-jona-lasinio model High density chiral symmetry restoring First and second order phase transitions |
| 通讯作者 | Wang xiao-ming() |
| 英文摘要 | A general research on chiral symmetry restoring phase transitions at zero temperature and finite chemical potentials under electrical neutrality condition has been conducted in a nambu-jona-lasinio model to describe two-flavor normal quark matter. depending on whether m(0)/lambda, the ratio of dynamical quark mass in vacuum and the 3d momentum cutoff in the loop integrals, is less or greater than 0.413, the phase transition will be of the, second or first order. a complete phase diagram of u quark chemical potential versus m(0) is given. with the electrical neutrality constraint, the region where the second order phase transition happens will be wider than the one without electrical neutrality limitation. the results also show that, for the value of m(0)/lambda from qcd phenomenology, the phase transition must be of the first order. |
| WOS关键词 | MASS INEQUALITIES ; QUANTUM CHROMODYNAMICS ; DYNAMICAL MODEL ; GAUGE-THEORY ; BREAKING ; SUPERCONDUCTIVITY ; ANALOGY ; MATTER ; QCD |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | INTERNATIONAL ACADEMIC PUBLISHERS LIMITED |
| WOS记录号 | WOS:000247224100024 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380528 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang Xiao-Ming |
| 作者单位 | Chinese Acad Sci, Grad Sch, Coll Phys Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Xiao-Ming,Zhou Bang-Rong. Electrical neutrality and symmetry restoring phase transitions at high density in a two-flavor nambu-jona-lasinio model[J]. Communications in theoretical physics,2007,47(6):1081-1087. |
| APA | Wang Xiao-Ming,&Zhou Bang-Rong.(2007).Electrical neutrality and symmetry restoring phase transitions at high density in a two-flavor nambu-jona-lasinio model.Communications in theoretical physics,47(6),1081-1087. |
| MLA | Wang Xiao-Ming,et al."Electrical neutrality and symmetry restoring phase transitions at high density in a two-flavor nambu-jona-lasinio model".Communications in theoretical physics 47.6(2007):1081-1087. |
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来源：中国科学院大学
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