Quantum Fluctuations of Bulk Inflaton in Inflationary Brane World

Details Quantum Fluctuations of Bulk Inflaton in Inflationary Brane World Quantum Fluctuations of Bulk Inflaton in Inflationary Brane World

2000-09-21

arxiv.org/abs/hep-th/0009160v1

Phys.Lett. B501 (2001) 157-164

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, 2 figures

Scientific paper

10.1016/S0370-2693(01)00137-X

The inflationary scenario for the brane world driven by the bulk inflaton is proposed. The quantum fluctuations of the inflaton is calculated and compared to those of the conventional 4-dimensional inflationary scenario. It is shown that the deviation of the primordial spectrum of this model from that of the conventional one is too small to be observed even if $AdS$ radius is very large. Hence, it turns out that the inflation caused by the bulk inflaton is viable in the context of brane world cosmology.

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