Transport Coefficients of Quark Gluon Plasma From Lattice Gauge Theory

Abstract

Numerical results for the transport coefficients of quark gluon plasma are obtained by lattice simulations on on $16^3\times 8$ lattice with the quench approximation where we apply the gauge action proposed by Iwasaki. The bulk viscosity is consistent with zero, and the shear viscosity is slightly smaller than the typical hadron masses. They are not far from the simple extrapolation on the figure of perturbative calculation in high temperature limit down to $T\sim T_c$. The gluon propagator in the confined and deconfined phases are also discussed.

Quark Matter 97(talk at parallel session QCD) 4 pages in latex, 4 Postscript figures

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