Nonlinear bulk viscosity and inflation

Roy Maartens, Vicenç Méndez

    Research output: Contribution to journalArticleResearchpeer-review

    73 Citations (Scopus)


    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 languageEnglish
    Pages (from-to)1937-1942
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Publication statusPublished - 1 Jan 1997


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