Two problems in thermal field theory

Abstract

In this talk, I review recent progress made in two areas of thermal field theory. In particular, I discuss various approaches for the calculation of the quark gluon plasma thermodynamical properties, and the problem of its photon production rate.

Comments: 10 pages Latex document, 15 postscript figures. Invited talk given at the 6th Workshop on High Energy Particle Physics, Chennai, India, 3-15 Jan 2000