arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.01303hep-phhep-thnucl-th
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Gribov等离子体的协变动力学理论和输运系数

Covariant kinetic theory and transport coefficients for Gribov plasma

Amaresh Jaiswal, Najmul Haque

摘要:

Gribov量子化是改进Yang-Mills红外动力学理论的一种方法。研究了由胶子组成的等离子体的热力学和输运性质,胶子的传播子被Gribov公式改进。我们首先利用相互作用胶子的规范不变Gribov色散关系构造了Gribov等离子体的热力学。当色散关系中的Gribov参数与温度有关时,人们期望对玻尔兹曼方程进行平均场修正。我们制定协变动力学理论的Gribov等离子体和玻尔兹曼方程中的平均场的贡献。这导致了一个准粒子状的框架与袋修正的压力和能量密度,模仿禁闭。Gribov参数和袋压力的温度依赖性是固定的,通过与胶子系统的晶格结果相匹配。最后,我们计算了输运系数的温度依赖性,即,体积粘度和剪切粘度。

英文摘要:

Gribov quantization is a method to improve the infrared dynamics of Yang-Mills theory. We study the thermodynamics and transport properties of a plasma consisting of gluons whose propagator is improved by the Gribov prescription. We first construct thermodynamics of Gribov plasma using the gauge invariant Gribov dispersion relation for interacting gluons. When the Gribov parameter in the dispersion relation is temperature dependent, one expects a mean field correction to the Boltzmann equation. We formulate covariant kinetic theory for the Gribov plasma and determine the mean-field contribution in the Boltzmann equation. This leads to a quasiparticle like framework with a bag correction to pressure and energy density which mimics confinement. The temperature dependence of the Gribov parameter and bag pressure is fixed by matching with lattice results for a system of gluons. Finally we calculate the temperature dependence of the transport coefficients, i.e., bulk and shear viscosities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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