Transport Coefficients in Yang-Mills Theory and QCD

被引：93

作者：

Christiansen, Nicolai ^{[1
]}

Haas, Michael ^{[1
]}

Pawlowski, Jan M. ^{[1
,2
]}

Strodthoff, Nils ^{[1
]}

机构：

[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

[2] GSI Helmholtzzentrum Schwerionenforsch mbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 11期

关键词：

QUARK-GLUON PLASMA; VISCOSITY;

D O I：

10.1103/PhysRevLett.115.112002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculate the shear-viscosity-over-entropy-density ratio eta/s in Yang-Mills theory from the Kubo formula using an exact diagrammatic representation in terms of full propagators and vertices using gluon spectral functions as external input. We provide an analytic fit formula for the temperature dependence of eta/s over the whole temperature range from a glueball resonance gas at low temperatures, to a high-temperature regime consistent with perturbative results. Subsequently, we provide a first estimate for eta/s in QCD.

引用

页数：5

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