BPS pp-wave brane cosmological solutions in string theory

Details BPS pp-wave brane cosmological solutions in string theory BPS pp-wave brane cosmological solutions in string theory

2005-02-04

arxiv.org/abs/hep-th/0502055v1

JHEP0505:016,2005

Physics

High Energy Physics

High Energy Physics - Theory

10 pages

Scientific paper

10.1088/1126-6708/2005/05/016

We construct time dependent BPS pp-wave brane solutions in the context of M-theory and type II supergravity. It is found that N-brane solutions we considered satisfy the crossing rule as S-brane solutions but 1/8 supersymmetry remains. By applying them to the cosmological setting, inflationary solutions are obtained. During this inflation, the size of the extradimensions becomes smaller than our four-dimensional spacetime dynamically. We also discuss the mechanism for terminating this inflation and recovering the hot big-bang universe.

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