Shear Viscosity Coefficient and Relaxation Time of Causal Dissipative Hydrodynamics in QCD

Journal Article · Fri Jul 31 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.052301· OSTI ID:21370608

Koide, T; Nakano, E; Kodama, T ^[1]

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1. FIAS, Johann Wolfgang Goethe-Universitaet, Ruth-Moufang Str. 1, 60438, Frankfurt am Main (Germany)

The shear viscosity coefficient and the corresponding relaxation time for causal dissipative hydrodynamics are calculated based on the microscopic formula proposed in T. Koide and T. Kodama [Phys. Rev. E 78, 051107 (2008)]. Here, the exact formula is transformed into a more compact form and applied to evaluate these transport coefficients in the chiral perturbation theory and perturbative QCD. It is shown that in the leading order calculation, the causal shear viscosity coefficient eta reduces to that of the ordinary Green-Kubo-Nakano formula, and the relaxation time tau{sub p}i is related to eta and pressure P by a simple relationship, tau{sub p}i=eta/P.

• OSTI ID: 21370608
• Journal Information: Physical Review Letters, Vol. 103, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.103.052301; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHIRALITY
HYDRODYNAMICS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
RELAXATION TIME
VISCOSITY
FIELD THEORIES
FLUID MECHANICS
MECHANICS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY