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Variational calculations with improved energy functionals in gauge theories
C. Heinemann, E. Iancu, C. Martin +1
For a SU(N) Yang-Mills theory, we present variational calculations using gaussian wave functionals combined with an approximate projection on gauge invariant states. The projection…
Self-consistent hard-thermal-loop thermodynamics for the quark-gluon plasma
J. -P. Blaizot, E. Iancu, A. Rebhan
Self-consistent approximations allowing the calculation of the entropy and the baryon density of a quark-gluon plasma are presented. These approximations incorporate the essential…
Ultrasoft Amplitudes in Hot QCD
Jean-Paul Blaizot, Edmond Iancu
By using the Boltzmann equation describing the relaxation of colour excitations in the QCD plasma, we obtain effective amplitudes for the ultrasoft colour fields carrying momenta o…
The entropy of the QCD plasma
J. -P. Blaizot, E. Iancu, A. Rebhan
Self-consistent approximations in terms of fully dressed propagators provide a simple expression for the entropy of an ultrarelativistic plasma, which isolates the contribution of…
Non-perturbative aspects of hot QCD
Edmond Iancu
I discuss some non-perturbative aspects of hot gauge theories as related to the unscreened static magnetic interactions. I first review some of the infrared divergences which cause…
A Boltzmann Equation for the QCD Plasma
Jean-Paul Blaizot, Edmond Iancu
We present a derivation of a Boltzmann equation for the QCD plasma, starting from the quantum field equations. The derivation is based on a gauge covariant gradient expansion which…