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Charge neutrality effects on two-flavor color superconductivity
Huang M(黄梅); Zhao WQ(赵维勤); Huang, M; Zhuang, PF; Chao, WQ
2003
发表期刊PHYSICAL REVIEW D
卷号67期号:6页码:65015
通讯作者Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
摘要Four different phases of the two-flavor quark system, i.e., the normal quark matter and color superconducting phases with and without the charge neutrality condition, are investigated in the framework of the SU(2) Nambu-Jona-Lasinio model. It is found that the color superconducting phase without charge neutrality has the lowest thermodynamic potential, and the charge neutral systems have higher thermodynamic potentials. However, the BCS pairing always lowers the system's thermodynamic potential, i.e., for both the charged and charge neutral systems, the superconducting phases always have lower thermodynamic potentials. Compared with the BCS gap Delta(0) for the color superconducting phase without charge neutrality, the BCS gap Delta in the charge neutral color superconducting phase has been largely reduced. When the thermodynamic potential for the charge neutral color superconducting phase equals that in the neutral normal quark matter, the diquark condensate disappears.
文章类型Article
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.67.065015
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000182105200072
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240732
专题理论物理室
作者单位中国科学院高能物理研究所
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GB/T 7714
Huang M,Zhao WQ,Huang, M,et al. Charge neutrality effects on two-flavor color superconductivity[J]. PHYSICAL REVIEW D,2003,67(6):65015.
APA 黄梅,赵维勤,Huang, M,Zhuang, PF,&Chao, WQ.(2003).Charge neutrality effects on two-flavor color superconductivity.PHYSICAL REVIEW D,67(6),65015.
MLA 黄梅,et al."Charge neutrality effects on two-flavor color superconductivity".PHYSICAL REVIEW D 67.6(2003):65015.
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