Thermodynamic properties and bulk viscosity near phase transition in the Z(2) and O(4) models
Li, BC; Huang M(黄梅); Huang, M
刊名PHYSICAL REVIEW D
2009
卷号80期号:3页码:34023
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.80.034023
通讯作者[Li, Bao-Chun] Shanxi Univ, Dept Phys, Taiyuan 030006, Shanxi, Peoples R China ; [Li, Bao-Chun ; Huang, Mei] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Huang, Mei] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
文章类型Article
英文摘要We investigate the thermodynamic properties including equation of state, the trace anomaly, the sound velocity, and the specific heat, as well as transport properties like bulk viscosity in the Z(2) and O(4) models in the Hartree approximation of Cornwall-Jackiw-Tomboulis formalism. We study these properties in different cases, e. g. first-order phase transition, second-order phase transition, crossover and the case without phase transition, and discuss the correlation between the bulk viscosity and the thermodynamic properties of the system. We find that the bulk viscosity over entropy density ratio exhibits an upward cusp at the second-order phase transition, and a sharp peak at the first-order phase transition. However, this peak becomes smooth or disappears in the case of crossover. This result supports the idea that the bulk viscosity over entropy density ratio is a better quantity than the shear viscosity over entropy density ratio to locate the critical end point.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000269641100045
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240559
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_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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Li, BC,Huang M,Huang, M. Thermodynamic properties and bulk viscosity near phase transition in the Z(2) and O(4) models[J]. PHYSICAL REVIEW D,2009,80(3):34023.
APA Li, BC,黄梅,&Huang, M.(2009).Thermodynamic properties and bulk viscosity near phase transition in the Z(2) and O(4) models.PHYSICAL REVIEW D,80(3),34023.
MLA Li, BC,et al."Thermodynamic properties and bulk viscosity near phase transition in the Z(2) and O(4) models".PHYSICAL REVIEW D 80.3(2009):34023.
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