S-duality in String Gas Cosmology

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dc.creatorArapoglu, S.
dc.creatorKarakci, A.
dc.creatorKaya, A.
dc.date2006-11-17
dc.date2006-11-27
dc.date.accessioned2026-07-07T11:43:58Z
dc.date.available2026-07-07T11:43:58Z
dc.descriptionWe consider a toy cosmological model in string theory involving the winding and momentum modes of (m,n) strings, i.e. bound states of m fundamental and n D-strings. The model is invariant under S-duality provided that m and n are interchanged. The dilaton is naturally stabilized due to S-duality invariance, which offers a new mechanism of moduli fixing in string gas cosmology. Using a tachyon field rolling down to its ground state, we also point out a possible way of realizing a cosmological phase with decreasing Hubble radius and constant dilaton.
dc.description6 pages, revtex4, v2: references and comments added
dc.identifierhttps://arxiv.org/abs/hep-th/0611193
dc.identifierhttp://arxiv.org/abs/hep-th/0611193
dc.identifierPhys.Lett.B645:255-260,2007
dc.identifierdoi:10.1016/j.physletb.2006.12.051
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201437
dc.subjectHigh Energy Physics - Theory
dc.titleS-duality in String Gas Cosmology
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