Resummation of the QCD thermodynamic potential

Abstract

It is argued why thermodynamic approximations in terms of dressed propagators may, at larger coupling strength, be better behaved than perturbative results, and why in hot QCD the hard thermal loop approximation of the thermodynamic potential cannot be expected to work close to the phase transition.

Comments: 5 pages. Talk given at `Statistical QCD', Bielefeld, August 26-30, 2001