Brane inflation in tachyonic and non-tachyonic type 0B string theories

Details Brane inflation in tachyonic and non-tachyonic type 0B string theories Brane inflation in tachyonic and non-tachyonic type 0B string theories

2000-09-22

arxiv.org/abs/hep-th/0009175v1

Phys.Rev. D63 (2001) 045014

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, no figure, RevTex

Scientific paper

10.1103/PhysRevD.63.045014

We consider the motion of the brane universe moving in a background bulk space of tachyonic and non-tachyonic type 0B string theory. The effective densities are calculated for both cases and they show different power law behavior. Brane inflation for non-tachyonic type 0B background has the same power law behavior as that for type IIB background. The brane inflation under tachyonic background is less divergent than the one without tachyon. The role of tachyonic field in brane inflation scenario is different from that of the ordinary matter field.

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