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arXiv · hep-th/0106190

Brane-World Inflation and the Transition to Standard Cosmology

Andre Lukas·David Skinner
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Abstract

In the context of a five-dimensional brane-world model motivated from heterotic M-theory, we develop a framework for potential-driven brane-world inflation. Specifically this involves a classification of the various background solutions of (A)dS_5 type, an analysis of five-dimensional slow-roll conditions and a study of how a transition to the flat vacuum state can be realized. It is shown that solutions with bulk potential and both bane potentials positive exist but are always non-separating and have a non-static orbifold. It turns out that, for this class of backgrounds, a transition to the flat vacuum state during inflation is effectively prevented by the rapidly expanding orbifold. We demonstrate that such a transition can be realized for solutions where one boundary potential is negative. For this case, we present two concrete inflationary models which exhibit the transition explicitly.

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Andre Lukas, David Skinner. 2001-06-25. Brane-World Inflation and the Transition to Standard Cosmology. https://doi.org/10.1088/1126-6708%2F2001%2F09%2F020

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