f(R) gravity equation of state

Emilio Elizalde, Pedro J. Silva

    Research output: Contribution to journalArticleResearchpeer-review

    79 Citations (Scopus)


    The f(R) gravity field equations are derived as an equation of state of local space-time thermodynamics. Jacobson's arguments are nontrivially extended, by means of a more general definition of local entropy, for which Wald's definition of dynamic black hole entropy is used, as well as the concept of an effective Newton constant for graviton exchange, which recently appeared in the literature. © 2008 The American Physical Society.
    Original languageEnglish
    Article number061501
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Issue number6
    Publication statusPublished - 25 Sep 2008


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