Tachyonic Inflation in the Braneworld Scenario

Abstract

We consider cosmological inflation driven by the rolling tachyon in the context of the braneworld scenario. We show that sufficient inflation consistent with the observational constraints can be achieved for well defined upper limits on the five-dimensional mass scale, string mass scale and the string coupling for the bosonic string.

Comments: Revtex4, 1 eps figure, 1 table, 5 pages. Typos corrected