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Brane inflation: A field theory approach in background supergravity

2012/09/26 by Sayantan Choudhury, Supratik Pal · 1 citation
Physics and Astronomy · #hep-th #astro-ph.CO #gr-qc #hep-ph

paper · pdf · doi:10.1088/1742-6596/405/1/012009

published as Journal of Physics: Conference Series 405 (2012) 012009 · 4 pages, 2 figures; to appear in the Proceedings of COSGRAV-2012 (International Conference on Modern Perspectives of Cosmology and Gravitation), Indian Statistical Institute, Kolkata, India, February 7-11, 2012

arxiv created 2012/09/26 · arxiv updated 2012/12/21

Abstract

We propose a model of inflation in the framework of brane cosmology driven by background supergravity. Starting from bulk supergravity we construct the inflaton potential on the brane and employ it to investigate for the consequences to inflationary paradigm. To this end, we derive the expressions for the important parameters in brane inflation, which are somewhat different from their counterparts in standard cosmology, using the one loop radiative corrected potential. We further estimate the observable parameters and find them to fit well with recent observational data. We have studied extensively reheating phenomenology, which explains the thermal history of the universe and leptogenesis through the production of thermal gravitino pertaining to the particle physics phenomenology of the early universe.

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