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题名: A Model-Independent Discussion of Quark Number Density and Quark Condensate at Zero Temperature and Finite Quark Chemical Potential
作者: Xu, SS ;  Jiang, Y ;  Shi, C ;  Cui, ZF ;  Zong, HS
刊名: CHINESE PHYSICS LETTERS
出版日期: 2015
卷号: 32, 期号:12, 页码:121101
学科分类: Physics
DOI: http://dx.doi.org/10.1088/0256-307X/32/12/121101
通讯作者: Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
文章类型: Article
英文摘要: Generally speaking, the quark propagator is dependent on the quark chemical potential in the dense quantum chromodynamics (QCD). By means of the generating functional method, we prove that the quark propagator actually depends on p(4) + i mu from the first principle of QCD. The relation between quark number density and quark condensate is discussed by analyzing their singularities. It is concluded that the quark number density has some singularities at certain.. when T = 0, and the variations of the quark number density as well as the quark condensate are located at the same point. In other words, at a certain mu the quark number density turns to nonzero, while the quark condensate begins to decrease from its vacuum value.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: CHIRAL PHASE-TRANSITION ;  QCD ;  SUSCEPTIBILITY
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11275097, 11475085, 11105122, 11535005] ;  Jiangsu Planned Projects for Postdoctoral Research Funds [1402006C]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20774
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Xu, SS,Jiang, Y,Shi, C,et al. A Model-Independent Discussion of Quark Number Density and Quark Condensate at Zero Temperature and Finite Quark Chemical Potential[J]. CHINESE PHYSICS LETTERS,2015,32(12):121101.
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