QCD pressure and the trace anomaly

被引:18
作者
Drummond, IT [1 ]
Horgan, RR
Landshoff, PV
Rebhan, A
机构
[1] Univ Cambridge, DAMTP, Cambridge CB2 1TN, England
[2] Tech Univ Vienna, Inst Theoret Phys, A-1060 Vienna, Austria
关键词
D O I
10.1016/S0370-2693(99)00725-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:197 / 203
页数:7
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