Mirage Cosmology on Unstable D3-Brane Universe

Details Mirage Cosmology on Unstable D3-Brane Universe Mirage Cosmology on Unstable D3-Brane Universe

2006-09-25

arxiv.org/abs/hep-th/0609169v1

Physics

High Energy Physics

High Energy Physics - Theory

6 pages. Talk at the RTN conference ``The Quest for Unification: Theory Confronts Experiment", Corfu, Greece, Sept, 11-18, 200

Scientific paper

We study the geodesic motion of an unstable brane moving in a higher
dimensional bulk spacetime. The tachyon which is coupled to a U(1) gauge field
induces a non-trivial cosmological evolution. Interestingly enough, this system
exhibits a much smoother initial cosmological singularity in comparison with
former works.

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