The Inflationary Role of the Dilaton in String Cosmology

Abstract

It is stressed that the kinematical problems of the standard cosmological model can be solved by a phase of accelerated contraction of the cosmic scale factor. Such a behaviour is only a particular case of a more general ``pre-big-bang" inflationary scenario, arising naturally in a string cosmology context, and driven asymptotically by the free dilaton field without any self-interaction potential and/or vacuum contribution.

9 pages, plain tex, DFTT-29/94

References in corpus (10)

• Pre-Big-Bang in String Cosmology
• Topological Inflation
• The Graceful Exit Problem in String Cosmology
• Inflation Deflation and Frame-Independence in String Cosmology
• Dilaton Production in String Cosmology
• $O(d,d)$-Covariant String Cosmology
• Dynamical Topology Change in String Theory
• Relaxed Bounds on the Dilaton Mass in a String Cosmology Scenario
• Phenomenological Aspects of the Pre-Big-Bang Scenario in String Cosmology
• Dynamical Topology Change, Compactification and Waves in a Stringy Early Universe

Cited by in corpus (4)

• Metric Perturbations in Dilaton-Driven Inflation
• Exact inflationary solutions
• Emergence of ghost in once-subtracted on-shell unitarization in glueball-glueball scattering
• DILATON-DRIVEN INFLATION IN STRING COSMOLOGY