Shear viscosity and spectral function of the quark matter

2006/06/19 by Iwasaki, Masaharu, Ohnishi, Hiromasa, Fukutome, Takahiko
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.hep-ph/0606192

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.

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