Abstract

We study collision of two domain walls in 5‐dimensional asymptotically Anti de Sitter spacetime. This may provide the reheating mechanism of an ekpyrotic brane universe, in which two BPS branes collide and evolve into a hot big bang universe. We evaluate a change of scalar field making the domain wall and can investigate the effect of a negative cosmological term in the bulk to the collision process and the evolution of our universe.

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