Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-05-27
Phys.Lett. B460 (1999) 197-203
Physics
High Energy Physics
High Energy Physics - Theory
9 pages plain tex
Scientific paper
10.1016/S0370-2693(99)00725-X
Exact relations between the QCD thermal pressure and the trace anomaly are derived. These are used, first, to prove the equivalence of the thermodynamic and the hydrodynamic pressure in equilibrium in the presence of the trace anomaly, closing a gap in previous arguments. Second, in the temporal axial gauge a formula is derived which expresses the thermal pressure in terms of a Dyson-resummed two-point function. This overcomes the infrared problems encountered in the conventional perturbation-theory approach.
Drummond Ian T.
Horgan Ronald R.
Landshoff P. V.
Rebhan Anton
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