Inflationary Braneworld Driven By Bulk Scalar Field

Details Inflationary Braneworld Driven By Bulk Scalar Field Inflationary Braneworld Driven By Bulk Scalar Field

2003-12-17

arxiv.org/abs/gr-qc/0312076v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, no figure; invited talk presented at The 6th RESCEU International Symposium "Frontier in Astroparticle Physics and Co

Scientific paper

We have developed a formalism to study an inflationary scenario driven by a bulk inflaton in the two-brane system. The 4-dimensional low energy effective action is obtained using the gradient expansion method. It is also found that the dark radiation and the dark scalar source are expressed by the radion. In the single-brane limit, we find these dark components disappear. Therefore, it turns out that the inflation due to the bulk inflaton successfully takes place. Kaluza-Klein corrections are also taken into account in this case.

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