Nonuniversal lower bound for the shear viscosity to entropy density ratio

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.045020· OSTI ID:21413397

Jakovac, Antal ^[1]

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1. Physics Institute, BME Technical University, H-1111 Budapest (Hungary)

The lower bound of the shear viscosity to entropy density ratio is examined using an exact representation of the ratio through the density of states. Under certain assumptions it can be shown that the lower bound of the ratio is not universal; its value is determined by the entropy density. Some examples of physical systems are discussed in the paper where one can expect violation of the conformal 1/4{pi} value.

• OSTI ID: 21413397
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevD.81.045020; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONFORMAL INVARIANCE
DENSITY
ENTROPY
FIELD THEORIES
INVARIANCE PRINCIPLES
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES