Bulk viscosity of hot dense Quark matter in the PNJL model

被引：0
|
作者：
肖诗松 [1 ]
郭盼盼 [2 ]
张乐 [2 ]
侯德富 [2 ]
机构：
[1] Department of Computer Science,Central China Normal University
[2] Institute of Particle Physics,Central China Normal University
来源：
Chinese Physics C | 2014年 / 05期
关键词：
bulk viscosity; Kubo formula; PNJL model;
D O I：
暂无
中图分类号：
O572.33 [介子];
学科分类号：
070202 ;
摘要：
Starting from the Kubo formula and the QCD low energy theorem,we study the the bulk viscosity of hot dense quark matter in the PNJL model from the equation of state.We show that the bulk viscosity has a sharp peak near the chiral phase transition,and that the ratio of bulk viscosity over entropy rises dramatically in the vicinity of the phase transition.These results agree with those from the lattice and other model calculations.In addition,we show that the increase of chemical potential raises the bulk viscosity.
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页码：25 / 29
页数：5
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