Eternal inflation and a thermodynamic treatment of Einstein's equations

Gálvez Ghersi José Tomás, Geshnizjani Ghazal, Piazza Federico, Shandera Sarah

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In pursuing the intriguing resemblance of the Einstein equations to thermodynamic equations, most sharply seen in systems possessing horizons, we suggest that eternal inflation of the stochastic type may be a fruitful phenomenon to explore. We develop a thermodynamic first law for quasi-de Sitter space, valid on the horizon of a single observer's Hubble patch and explore consistancy with previous proposals for horizons of various types in dynamic and static situations. We use this framework to demonstrate that for the local observer fluctuations of the type necessary for stochastic eternal inflation fall within the regime where the thermodynamic approach is believed to apply. This scenario is interesting because of suggestive parallels with black hole evaporation.

Original languageEnglish (US)
Article number005
JournalJournal of Cosmology and Astroparticle Physics
Issue number6
StatePublished - Jun 2011

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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