Cosmological constant problem: Deflation during inflation

Felipe Canales, Benjamin Koch, Cristobal Laporte, ANGEL RINCON RIVERO

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We argue that the discrepancy between the Planck mass scale and the observed value of the cosmological constant can be largely attenuated, if those quantities are understood as a result of effective, and thus scale-dependent, couplings. We exemplify this mechanism for the early inflationary epoch of the universe by solving the corresponding effective gap equations, subject to an energy condition. Several non-trivial checks and extensions are discussed. A comparison of our results to the renormalization group flow, obtained within the asymptotic safety program reveals a stunning agreement.

Original languageEnglish
Article number021
JournalJournal of Cosmology and Astroparticle Physics
Volume2020
Issue number1
DOIs
StatePublished - 2020
Externally publishedYes

Keywords

  • gravity
  • ination
  • modified gravity

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