Towards A Nonsingular Tachyonic Big Crunch

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dc.creatorBrandenberger, Robert H.
dc.creatorFrey, Andrew R.
dc.creatorKanno, Sugumi
dc.date2007-05-22
dc.date2007-06-02
dc.date.accessioned2026-07-07T11:16:17Z
dc.date.available2026-07-07T11:16:17Z
dc.descriptionWe discuss an effective field theory background containing the gravitational field, the dilaton and a closed string tachyon, and couple this background to a gas of fundamental strings and D strings. Allowing for the possibility of a non-vanishing dilaton potential of Casimir type, we demonstrate the possibility of obtaining a nonsingular, static tachyon condensate phase with fixed dilaton. The time reversal of our solution provides a candidate effective field theory description of a Hagedorn phase of string gas cosmology with fixed dilaton.
dc.description7 pages, two references added
dc.identifierhttps://arxiv.org/abs/0705.3265
dc.identifierhttp://arxiv.org/abs/0705.3265
dc.identifierPhys.Rev.D76:063502,2007
dc.identifierdoi:10.1103/PhysRevD.76.063502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192621
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTowards A Nonsingular Tachyonic Big Crunch
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