Nonlinear bulk viscosity and inflation

Roy Maartens; Vicenç Méndez

doi:https://doi.org/10.1103/PhysRevD.55.1937

Nonlinear bulk viscosity and inflation

Roy Maartens, Vicenç Méndez

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

We develop a nonlinear generalization of the causal linear thermodynamics of bulk viscosity, incorporating the positivity of the entropy production rate and the effective specific entropy. The theory is applied to viscous fluid inflation (which is necessarily far from equilibrium), and we find thermodynamically consistent inflationary solutions, both exponential and power law. © 1997 The American Physical Society.

Original language	English
Pages (from-to)	1937-1942
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	55
DOIs	https://doi.org/10.1103/PhysRevD.55.1937
Publication status	Published - 1 Jan 1997

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AB - We develop a nonlinear generalization of the causal linear thermodynamics of bulk viscosity, incorporating the positivity of the entropy production rate and the effective specific entropy. The theory is applied to viscous fluid inflation (which is necessarily far from equilibrium), and we find thermodynamically consistent inflationary solutions, both exponential and power law. © 1997 The American Physical Society.

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Nonlinear bulk viscosity and inflation

Abstract

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