| Shear Viscosity to Non-Equilibrium Entropy Density Ratio of Hot Quark-Gluon Plasma at Finite Chemical Potential |
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| 作者姓名： | 刘绘 侯德富 李家荣 |
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| 作者单位： | Institute of Particle Physics, Central China Normal University, Wuhan 430079 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10675052 and 10575043, and NCET-05-0675. |
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| 摘 要： | In the framework of irreversible thermodynamics, we study the transport properties of hot quark-gluon plasmas. The viscous entropy production at finite chemical potential as well as the shear viscosity to non-equilibrium entropy density ratio is investigated in weakly coupled limit by using kinetic theory. The results show that the chemical potential contributes positively to their ratio compared to the pure temperature case. The ratio exhibits two boundaries in the coupling strength in which a minimum value of 0.42 is found at αs=0.6.
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| 关 键 词： | 剪切黏度 平衡熵 密度比 夸克 胶子 |
| 收稿时间： | 2007-2-7 |
| 修稿时间： | 2007-02-07 |
Shear Viscosity to Non-Equilibrium Entropy Density Ratio of Hot Quark--Gluon Plasma at Finite Chemical Potential |
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| LIU Hui,HOU De-Fu,LI Jia-Rong.Shear Viscosity to Non-Equilibrium Entropy Density Ratio of Hot Quark-Gluon Plasma at Finite Chemical Potential[J].Chinese Physics Letters,2007,24(5):1191-1194. |
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| Authors: | LIU Hui HOU De-Fu LI Jia-Rong |
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| Institution: | Institute of Particle Physics, Central China Normal University, Wuhan 430079 |
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| Abstract: | |
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| Keywords: | 12 38 Mh 51 20 +d 05 70 -a 52 25 Dg |
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