Transport Coefficients of a Gluon Plasma

Atsushi Nakamura and Sunao Sakai

Phys. Rev. Lett. 94, 072305 – Published 25 February 2005

Abstract

Transport coefficients of gluon plasma are calculated for an SU(3) pure gauge model by lattice QCD simulations on $16^{3} \times 8$ and $24^{3} \times 8$ lattices. Simulations are carried out at slightly above the deconfinement transition temperature $T_{c}$ , where a new state of matter is currently being pursued in BNL RHIC experiments. Our results show that the ratio of the shear viscosity to the entropy is less than one and the bulk viscosity is consistent with zero in the region $1.4 \leq T / T_{c} \leq 1.8$ .

Received 11 June 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.072305

Authors & Affiliations

Atsushi Nakamura^*

RIISE, Hiroshima University, Higashi-Hiroshima, 739-8521, Japan and Institute for Nuclear Theory, University of Washington, Box 351550, Seattle Washington 98195, USA

Sunao Sakai^†