Thermodynamic origin of the null energy condition

Maulik Parikh, Andrew Svesko

Research output: Contribution to journalArticle

1 Scopus citations


We derive the classical null energy condition, understood as a constraint on the Ricci tensor, from the second law of thermodynamics applied locally to Bekenstein-Hawking entropy associated with patches of null congruences. The derivation provides evidence that the null energy condition, which has usually been regarded as a condition on matter, is fundamentally a property of gravity.

Original languageEnglish (US)
Article number104002
JournalPhysical Review D
Issue number10
StatePublished - 2017


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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