Equation of state of gluon plasma from a fundamental modular region

被引：62

作者：

Zwanziger, D ^{[1
]}

机构：

[1] NYU, Dept Phys, New York, NY 10003 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.94.182301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Despite considerable practical success in dealing with the gluon plasma, finite-temperature perturbation theory suffers at the fundamental level from infrared divergences discovered by Linde. However, if gauge or Gribov copies are properly eliminated from the physical state space, infrared modes are strongly suppressed. We describe the gluon plasma in zeroth order as a gas of free quasiparticles with a temperature-independent dispersion relation of Gribov type, E(k)=√ k(2)+M-4/k(2), that results from the reduction of the physical state space. The effective mass M-2/k controls infrared divergences and allows finite calculable corrections. The equation of state of this gas is calculated and compared with numerical lattice data.

引用

页数：4

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