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First order dissipative hydrodynamics and viscous corrections to the entropy four-current from an effective covariant kinetic theory
Journal of Physics G: Nuclear and Particle Physics ( IF 3.4 ) Pub Date : 2020-07-12 , DOI: 10.1088/1361-6471/ab907b
Samapan Bhadury 1 , Manu Kurian 2, 3 , Vinod Chandra 2 , Amaresh Jaiswal 1
Affiliation  

The first order hydrodynamic evolution equations for the shear stress tensor, the bulk viscous pressure and the charge current have been studied for a system of quarks and gluons, with a non-vanishing quark chemical potential and finite quark mass. The first order transport coefficients have been obtained by solving an effective Boltzmann equation for the grand-canonical ensemble of quasiquarks and quasigluons. We adopted temperature dependent effective fugacity for the quasiparticles to encode the hot QCD medium effects. The non-trivial energy dispersion of the quasiparticles induces mean field contributions to the transport coefficients whose origin could be directly related to the realization of conservation laws from the effective kinetic theory. Both the QCD equation of state and chemical potential are seen to have a significant impact on the quark-gluon plasma evolution. The shear and bulk viscous corrections to the entropy-four current have been investigated in the framew...

中文翻译:

有效协变动力学理论对熵四流的一阶耗散流体动力学和粘性修正

研究了具有夸克化学势不消失且夸克质量为零的夸克和胶子系统的一阶流体动力学演化方程,包括剪应力张量,体粘性压力和充电电流。一阶输运系数是通过对拟夸克和拟西格隆的大正则合奏求解有效的玻尔兹曼方程而获得的。我们对准粒子采用了温度依赖性有效逸度来编码热QCD介质效应。准粒子的非平凡能量色散引起平均场贡献给输运系数,其起源可能与有效动力学理论中守恒律的实现直接相关。QCD状态方程和化学势均被视为对夸克-胶子等离子体演化有重大影响。在框架中研究了对熵四电流的剪切和体积粘性校正。
更新日期:2020-07-13
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