Particle creation and reheating in a braneworld inflationary scenario
arXiv:1707.06023 · doi:10.1103/PhysRevD.96.083518
Abstract
We study the cosmological particle creation in the tachyon inflation based on the D-brane dynamics in the RSII model extended to include matter in the bulk. The presence of matter modifies the warp factor which results in two effects: a modification of the RSII cosmology and a modification of the tachyon potential. Besides, a string theory D-brane supports among other fields a U(1) gauge field reflecting open strings attached to the brane. We demonstrate how the interaction of the tachyon with the U(1) gauge field drives cosmological creation of massless particles and estimate the resulting reheating at the end of inflation.
arXiv comment19 pages, 1figure, added references, typos corrected
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