D3/D7 Inflationary Model and M-theory
Abstract
A proposal is made for a cosmological D3/D7 model with a constant magnetic flux along the D7 world-volume. It describes an N=2 gauge model with Fayet-Iliopoulos terms and the potential of the hybrid P-term inflation. The motion of the D3-brane towards D7 in a phase with spontaneously broken supersymmetry provides a period of slow-roll inflation in the de Sitter valley, the role of the inflaton being played by the distance between D3 and D7-branes. After tachyon condensation a supersymmetric ground state is formed: a D3/D7 bound state corresponding to an Abelian non-linear (non-commutative) instanton. In this model the existence of a non-vanishing cosmological constant is associated with the resolution of the instanton singularity. We discuss a possible embedding of this model into a compactified M-theory setup.
Keywords
Cite
@article{arxiv.hep-th/0203019,
title = {D3/D7 Inflationary Model and M-theory},
author = {Keshav Dasgupta and Carlos Herdeiro and Shinji Hirano and Renata Kallosh},
journal= {arXiv preprint arXiv:hep-th/0203019},
year = {2009}
}
Comments
30 pages, 4 figures, LaTeX; v2, minor typos corrected, one reference added