Can the Type-IIB axion prevent Pre-big Bang inflation?
arXiv:hep-th/9806167 · doi:10.1016/S0370-2693(98)01183-6
Abstract
We look at the possibility of superinflationary behavior in a class of anisotropic Type-IIB superstring cosmologies in the context of Pre-big Bang scenario and find that there exists a rather narrow range of parameters for which these models inflate. We then show that, although in general this behavior is left untouched by the introduction of a Ramond-Ramond axion field through a SL(2,R) rotation, there exists a particular class of axions for which inflation disappears completely. Asymptotic past initial conditions are briefly discussed, and some speculations on the possible extension of Pre-big Bang ideas to gravitational collapse are presented.
harvmac, epsf. 3 figures included
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- Supersymmetric Quantization of Anisotropic Scalar-Tensor Cosmologies
- String-inspired cosmology
- Inhomogeneous Einstein-Rosen String Cosmology
- Cosmological perturbation spectra from SL(4,R)-invariant effective actions
- Entropy generation and inflation in wave collision induced pre-big-bang cosmology
- Charged Dual String Vacua from Interacting Rotating Black Holes Via Discrete and Nonlinear Symmetries
- Some -invariant Variables: Constructed of the Scalars Dilaton and Axion