Anomalous viscosity of an expanding quark-gluon plasma

被引：10
|
作者：
Asakawa, M. [1 ]
Bass, S. A.
Mueller, B.
机构：
[1] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan
[2] Duke Univ, Dept Phys, Durham, NC 27708 USA
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2007年 / 34卷 / 08期
关键词：
D O I：
10.1088/0954-3899/34/8/S108
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We argue that an expanding quark - gluon plasma has an anomalous viscosity, which arises from interactions with dynamically generated colour fields. The anomalous viscosity dominates over the collisional viscosity for large velocity gradients or weak coupling. This effect may provide an explanation for the apparent near-perfect liquidity of the matter produced in nuclear collisions at RHIC without the assumption that it is a strongly coupled state.
引用
收藏
页码：S839 / S842
页数：4
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