Initial conditions for brane inflation

R. Brandenberger, G. Geshnizjani, S. Watson

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

String theory gives rise to various mechanisms to generate primordial inflation, of which “brane inflation” is one of the most widely considered. In this scenario, inflation takes place while two branes are approaching each other, and the modulus field representing the separation between the branes plays the role of the inflaton field. We study the phase space of initial conditions which can lead to a sufficiently long period of cosmological inflation, and find that taking into account the possibility of nonvanishing initial momentum can significantly change the degree of fine-tuning of the required initial conditions.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume67
Issue number12
DOIs
StatePublished - Jan 1 2003
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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