p-Brane cosmology and phases of Brans-Dicke theory with matter

Abstract

We study the effect of the solitonic degrees of freedom in string cosmology following the line of Rama. The gas of solitonic p-brane is treated as a perfect fluid in a Brans-Dicke type theory. In this paper, we find exact cosmological solutions for any Brans-Dicke parameter $\omega$ and for general parameter $\gamma$ of equation of state and classify the cosmology of the solutions on a parameter space of $\gamma$ and $\omega$.

26 pages, 5 figures, Contents and references added; published in Phys. Rev. D57(1998) 4620

References in corpus (2)

• Stabilizing dilaton and moduli vacua in string and M--Theory cosmology
• Can String Theory Avoid Cosmological Singularities?

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• Brans-Dicke-type theories and avoidance of the cosmological singularity
• Stabilization of the Extra Dimensions in Brane Gas Cosmology with Bulk Flux
• Holographic time-dependent entanglement entropy in $p$-brane gas geometries
• Radion effective potential in brane gas cosmology
• D-brane worlds and the cosmological constant
• Phases of Brans-Dicke cosmology(II):Matter from NS-NS sector