论文标题
粘性夸克 - 格鲁隆等离子体中的颜色电导率
Color-electric conductivity in a viscous quark-gluon plasma
论文作者
论文摘要
可以在夸克 - 杜伦等离子体（QGP）的同时进行几种不同的运输过程，例如热运输，动量传输和充电运输。相应的运输系数分别是热电导率，剪切粘度和电导率。在本文中，我们将在存在剪切粘度的情况下研究QGP的颜色电导率，该电粘度的颜色电导率集中在电荷传输与动量转运之间的连接上。为了实现这一目标，我们解决了从QGP动力学理论获得的粘性染色性流体动力方程，该理论与剪切粘度修饰的分布函数相关。根据流体动力学量的溶液颜色波动，我们获得了诱导的颜色电流，从而导致了颜色电导率。然后，我们研究对颜色电导率的粘性影响。在粘性染色性流动力学方法中，QGP的电导率特性主要由颜色电导率的纵向部分证明。剪切粘度对某些频率区域的颜色电导率的真实和虚构部分具有明显的影响。
Several different transport processes, such as heat transport, momentum transport and charge transport, may take place at the same time in the quark-gluon plasma (QGP). The corresponding transport coefficients are heat conductivity, shear viscosity and electric conductivity respectively. In the present paper, we will study the color-electric conductivity of the QGP in presence of shear viscosity, which is focused on the connection between the charge transport and the momentum transport. To achieve that goal, we solve the viscous chromohydrodynamic equations which are obtained from the QGP kinetic theory associated with the distribution function modified by shear viscosity. According to the solved color fluctuations of hydrodynamic quantities we obtain the induced color current through which the color-electric conductivity is derived. Then we study viscous effects on the color-electric conductivity. In the viscous chromohydrodynamic approach, the conductivity properties of the QGP are mainly demonstrated by the longitudinal part of the color-electric conductivity. Shear viscosity has an appreciable impact on real and imaginary parts of the color-electric conductivity in some frequency region.
