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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 Shu-Sheng1, 4; Jiang Yu2; Shi Chao1, 4; Cui Zhu-Fang1, 4; Zong Hong-Shi1, 3, 4
刊名: CHINESE PHYSICS LETTERS
出版日期: 2015-12-01
卷号: 32, 期号:12
DOI: 10.1088/0256-307X/32/12/121101
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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
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 ; Jiangsu Planned Projects for Postdoctoral Research Funds(1402006C) ; 11475085 ; 11105122 ; 11535005)
语种: 英语
WOS记录号: WOS:000366615500004
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16082
Appears in Collections:空间目标与碎片观测研究基地_期刊论文

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作者单位: 1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Zhejiang Normal Univ, Ctr Stat & Theoret Condensed Matter Phys, Jinhua 321004, Peoples R China
3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
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