Reheating Brane Worlds

Details Reheating Brane Worlds Reheating Brane Worlds

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..805..165y&link_type=abstract

PARTICLES, STRINGS, AND COSMOLOGY: 11th International Symposium on Particles, Strings, and Cosmology; PASCOS 2005. AIP Conferen

Physics

D Branes, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We consider reheating processes at the end of string theory inflation involving unstable D-brane systems. Nucleosynthesis restricts how much of reheating energy may be present in the nonstandard matter sector, such as gravitons and gravitinos, introducing some constraints on reheating process. In string theory setting, these may not be avoided ad hoc by fine-tuning and provide a useful tool in weeding out unrealistic scenarios. In this talk, we how the energy gets deposited into various light degrees of freedom in open and closed strings sectors. We show that a viable reheating is possible in a single throat case of KKLMMT type inflation model. Depending on details of the geometry, however, a potential problem with long-lived KK relic is present. For multi-throat case, this problem of KK relic is typically more severe and generic.

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