Brane Interaction as the Origin of Inflation

Details Brane Interaction as the Origin of Inflation Brane Interaction as the Origin of Inflation

2002-03-18

arxiv.org/abs/hep-th/0203163v3

JHEP 0207 (2002) 051

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, 8 figures, 2 tables, JHEP format

Scientific paper

10.1088/1126-6708/2002/07/051

We reanalyze brane inflation with brane-brane interactions at an angle, which include the special case of brane-anti-brane interaction. If nature is described by a stringy realization of the brane world scenario today (with arbitrary compactification), and if some additional branes were present in the early universe, we find that an inflationary epoch is generically quite natural, ending with a big bang when the last branes collide. In an interesting brane inflationary scenario suggested by generic string model-building, we use the density perturbation observed in the cosmic microwave background and the coupling unification to find that the string scale is comparable to the GUT scale.

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