Bouncing and Accelerating Solutions in Nonlocal Stringy Models

Simple item page
dc.creatorAref'eva, I. Ya.
dc.creatorJoukovskaya, L. V.
dc.creatorVernov, S. Yu.
dc.date2007-01-19
dc.date2007-10-10
dc.date.accessioned2026-07-07T10:38:06Z
dc.date.available2026-07-07T10:38:06Z
dc.descriptionA general class of cosmological models driven by a non-local scalar field inspired by string field theories is studied. In particular cases the scalar field is a string dilaton or a string tachyon. A distinguished feature of these models is a crossing of the phantom divide. We reveal the nature of this phenomena showing that it is caused by an equivalence of the initial non-local model to a model with an infinite number of local fields some of which are ghosts. Deformations of the model that admit exact solutions are constructed. These deformations contain locking potentials that stabilize solutions. Bouncing and accelerating solutions are presented.
dc.descriptionMinor corrections, references added, published in JHEP
dc.identifierhttps://arxiv.org/abs/hep-th/0701184
dc.identifierhttp://arxiv.org/abs/hep-th/0701184
dc.identifierJHEP0707:087,2007
dc.identifierdoi:10.1088/1126-6708/2007/07/087
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180605
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleBouncing and Accelerating Solutions in Nonlocal Stringy Models
dc.typetext

Files

Collections

arXiv