Cosmological constant problem: Deflation during inflation

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

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


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
Issue number1
StatePublished - 2020
Externally publishedYes


  • gravity
  • ination
  • modified gravity


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