Kasner and mixmaster behavior in universes with equation of state [Formula Presented]

Joel K. Erickson, Daniel H. Wesley, Paul J. Steinhardt, Neil Turok

Research output: Contribution to journalArticle

170 Scopus citations

Abstract

We consider cosmological models with a scalar field with equation of state [Formula Presented] that contract towards a big crunch singularity, as in recent cyclic and ekpyrotic scenarios. We show that chaotic mixmaster oscillations due to anisotropy and curvature are suppressed, and the contraction is described by a homogeneous and isotropic Friedmann equation if [Formula Presented] We generalize the results to theories where the scalar field couples to p forms and show that there exists a finite value of w, depending on the p-forms, such that chaotic oscillations are suppressed. We show that [Formula Presented] orbifold compactification also contributes to suppressing chaotic behavior. In particular, chaos is avoided in contracting heterotic M-theory models if [Formula Presented] at the crunch.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume69
Issue number6
DOIs
StatePublished - Jan 1 2004

All Science Journal Classification (ASJC) codes

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

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