Brane gas-driven bulk expansion as a precursor stage to brane inflation

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dc.creatorShuhmaher, Natalia
dc.creatorBrandenberger, Robert
dc.date2005-12-05
dc.date2006-04-25
dc.date.accessioned2026-07-07T06:54:26Z
dc.date.available2026-07-07T06:54:26Z
dc.descriptionWe propose a new way of obtaining slow-roll inflation in the context of higher dimensional models motivated by string and M theory. In our model, all extra spatial dimensions are orbifolded. The initial conditions are taken to be a hot dense bulk brane gas which drives an initial phase of isotropic bulk expansion. This phase ends when a weak potential between the orbifold fixed planes begins to dominate. For a wide class of potentials, a period during which the bulk dimensions decrease sufficiently slowly to lead to slow-roll inflation of the three dimensions parallel to the orbifold fixed planes will result. Once the separation between the orbifold fixed planes becomes of the string scale, a repulsive potential due to string effects takes over and leads to a stabilization of the radion modes. The conversion of bulk branes into radiation during the phase of bulk contraction leads to reheating.
dc.description5 pages, no figures, same as published one
dc.identifierhttps://arxiv.org/abs/hep-th/0512056
dc.identifierhttp://arxiv.org/abs/hep-th/0512056
dc.identifierPhys.Rev.Lett. 96 (2006) 161301
dc.identifierdoi:10.1103/PhysRevLett.96.161301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/105937
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleBrane gas-driven bulk expansion as a precursor stage to brane inflation
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