Dynamics in Nonlocal Cosmological Models Derived from String Field Theory

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dc.creatorJoukovskaya, Liudmila
dc.date2007-07-11
dc.date2007-11-29
dc.date.accessioned2026-07-07T11:17:43Z
dc.date.available2026-07-07T11:17:43Z
dc.descriptionA general class of nonlocal cosmological models is considered. A new method for solving nonlocal Friedmann equations is proposed, and solutions of the Friedmann equations with nonlocal operator are presented. The cosmological properties of these solutions are discussed. Especially indicated is $p$-adic cosmological model in which we have obtained nonsingular bouncing solution and string field theory tachyon model in which we have obtained full solution of nonlocal Friedmann equations with $w=-1$ at large times. The possibility of obtaining realistic value of cosmological constant from nonlocal cosmological models is also discussed.
dc.description21 pages, 7 figures, v3: updated to match PRD version
dc.identifierhttps://arxiv.org/abs/0707.1545
dc.identifierhttp://arxiv.org/abs/0707.1545
dc.identifierPhys.Rev.D76:105007,2007
dc.identifierdoi:10.1103/PhysRevD.76.105007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193100
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleDynamics in Nonlocal Cosmological Models Derived from String Field Theory
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