arXiv:hep-ph/0606192·v1·High Energy Physics — Phenomenology
Shear viscosity and spectral function of the quark matter
Masaharu Iwasaki🇯🇵 · Hiromasa Ohnishi🇯🇵 · Takahiko Fukutome🇯🇵
Abstract
We discuss the shear viscosity of the quark matter by using the Kubo-Mori formula. It is found that the shear viscosity is expressed in terms of the quark spectral function. If the spectral function is approximated by a modified Bright-Wigner type, the viscosity decreases as the width of the spectral function increases. We also discuss dependence of the shear viscosity on the temperature and the density.
Comments: 4pages, 4figures