Bulk viscosity of hot dense Quark matter in PNJL model
High Energy Physics - Phenomenology
2015-06-16 v1 Nuclear Theory
Abstract
Starting from the Kubo formula and the the QCD low energy theorem, we study the the bulk viscosity of hot dense quark matter in the PNJL model from the equation of state . We show that the bulk viscosity has a sharp peak near the chiral phase transition, and the ratio of bulk viscosity over entropy rises dramatically in the vicinity of the phase transition. These results agrees with that from lattice and other model calculations. In addition, we show that the increase of chemical potential raises the bulk viscosity.
Keywords
Cite
@article{arxiv.1306.3842,
title = {Bulk viscosity of hot dense Quark matter in PNJL model},
author = {Shi-Song Xiao and Le Zhang and Pan-Pan Guo and Defu Hou},
journal= {arXiv preprint arXiv:1306.3842},
year = {2015}
}
Comments
8 Pages, 3 figures in Latex. arXiv admin note: text overlap with arXiv:1107.5113 by other authors