粘性夸克胶子等离子体的色散关系和谱函数

Dispersion Relation and Spectral Function in the Viscous Quark-gluon Plasma

根据切向粘滞修正的夸克分布函数,构建出粘性色流体力学.在粘性色流体力学的理论框架下,推导具有切向粘滞的夸克胶子等离子体的胶子自能.以此为基础,研究粘性夸克胶子等离子体的色散关系和谱函数;讨论切向粘滞对色散关系和谱函数的影响.

We construct the viscous chromohydrodynamics in terms of the quark distribution function modified by shear viscosity which can describe color degrees of freedom.Under the framework of the viscous chromohydrodynamics,we derive the gluon self-energy in the quark-gluon plasma associated with shear viscosity.Based on the calculated gluon self-energy,we study the gluon longitudinal dispersion relation and the gluon longitudinal spectral function.Especially we concentrate on the effect of shear viscosity on the dispersion relation and the spectral function.