Skip to main navigation Skip to search Skip to main content

Dynamical analysis of attractor behavior in constant roll inflation

  • SUNY Buffalo

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

There has been considerable recent interest in a new class of non-slow roll inflationary solutions known as constant roll inflation. Constant roll solutions are a generalization of the ultra-slow roll (USR) solution, where the first Hubble slow roll parameter Ε; is small, but the second Hubble slow roll parameter η is not. While it is known that the USR solutions represent dynamical transients, there has been some disagreement in literature about whether or not large-η constant roll solutions are attractors or are also a class of transient solutions. In this paper we show that the large-η constant roll solutions do in fact represent transient solutions by performing stability analysis on the exact analytic (large-η) constant roll solutions.

Original languageEnglish
Article number063
JournalJournal of Cosmology and Astroparticle Physics
Volume2019
Issue number9
DOIs
StatePublished - Sep 27 2019

Keywords

  • cosmological parameters from CMBR
  • cosmological perturbation theory
  • ination

Fingerprint

Dive into the research topics of 'Dynamical analysis of attractor behavior in constant roll inflation'. Together they form a unique fingerprint.

Cite this