Does the second law hold at cosmic scales?

Manuel Gonzalez-Espinoza, Diego Pavón

Research output: Contribution to journalArticleResearch

6 Citations (Scopus)

Abstract

© 2019 The Author(s). The second law of thermodynamics is known to hold at small scales also when gravity plays a leading role, as in the case of black holes and self-gravitating radiation spheres. It has been suggested that it should as well at large scales. Here, by a purely kinematic analysis - based on the history of the Hubble factor and independent of any cosmological model - we explore if this law is fulfilled in the case of homogeneous and isotropic universes regardless of the sign of the spatial curvature.
Original languageEnglish
Pages (from-to)2924-2930
JournalMonthly Notices of the Royal Astronomical Society
Volume484
DOIs
Publication statusPublished - 11 Apr 2019

Keywords

  • cosmology: Theory
  • gravitation

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