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D3-D7 inflationary model and M theory

D3-D7 inflationary model and M theory 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

D3-D7 inflationary model and M theory

14 pages

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References (60)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2002 The American Physical Society
ISSN
1089-4918
DOI
10.1103/PhysRevD.65.126002
Publisher site
See Article on Publisher Site

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.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Jun 15, 2002

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