Cosmological moduli dynamics

Brian Greene, Simon Judes, Janna Levin, Scott Watson, Amanda Weltman

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Low energy effective actions arising from string theory typically contain many scalar fields, some with a very complicated potential and others with no potential at all. The evolution of these scalars is of great interest. Their late time values have a direct impact on low energy observables, while their early universe dynamics can potentially source inflation or adversely affect big bang nucleosynthesis. Recently, classical and quantum methods for fixing the values of these scalars have been introduced. The purpose of this work is to explore moduli dynamics in light of these stabilization mechanisms. In particular, we explore a truncated low energy effective action that models the neighborhood of special points (or more generally loci) in moduli space, such as conifold points, where extra massless degrees of freedom arise. We find that the dynamics has a surprisingly rich structure - including the appearance of chaos - and we find a viable mechanism for trapping some of the moduli.

Original languageEnglish (US)
Article number060
JournalJournal of High Energy Physics
Issue number7
StatePublished - Jul 1 2007
Externally publishedYes


  • Cosmology of theories beyond the SM
  • Spacetime singularities
  • Supergravity models
  • Superstring vacua

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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