Isocurvature fluctuations in the Affleck-Dine mechanism and constraints on inflation models

Shinta Kasuya, Masahiro Kawasaki, Fuminobu Takahashi

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

We argue that, in the Affleck-Dine mechanism, baryonic isocurvature fluctuations are generated in most inflation models in supergravity. The inflationary scale and a reheating temperature are constrained in order not to induce too large baryonic isocurvature fluctuations. In particular, high-scale inflation models with high reheating temperatures are disfavored in this context.

Original languageEnglish
Article number017
JournalJournal of Cosmology and Astroparticle Physics
Volume2008
Issue number10
DOIs
Publication statusPublished - 2008 Oct 1
Externally publishedYes

Keywords

  • Baryon asymmetry
  • Cosmological perturbation theory
  • Inflation
  • Physics of the early universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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