Energy conditions in Starobinsky supergravity

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7 Citations (Scopus)

Abstract

We consider the classical energy conditions (strong, null and weak) in Starobinsky supergravity theories. We study in detail the simplest Starobinsky supergravity model in the ''old-minimal" supergravity setup and find examples of violations of each energy condition for a certain range of the parameters due to extra scalar d.o.f. present in supergravity. We find the null and weak energy conditions to be preserved and the strong energy condition to be violated in the physically relevant examples such as inflation and dark energy.

Original languageEnglish
Article number061
JournalJournal of Cosmology and Astroparticle Physics
Volume2017
Issue number3
DOIs
Publication statusPublished - 31 Mar 2017

Keywords

  • modified gravity
  • supersymmetry and cosmology

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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