Quintessential inflation from Lorentzian slow roll

D. Benisty, E. I. Guendelman

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


From the assumption that the slow-roll parameter ε has a Lorentzian form as a function of the e-fold number N, a successful model of a quintessential inflation is obtained, as succinctly studied in [1]. The form corresponds to the vacuum energy both in the inflationary and in the dark-energy epochs and satisfies the condition to climb from small values of ε to 1 at the end of the inflationary epoch. We find the corresponding scalar quintessential inflationary potential with two flat regions. Moreover, a reheating mechanism is suggested with numerical estimation for the homogeneous evolution of the universe. The suggested mechanism is consistent with the BBN bound.

Original languageEnglish
Article number577
JournalEuropean Physical Journal C
Issue number6
StatePublished - 1 Jun 2020

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)


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