The Ups and Downs of Cyclic Universes

Simple item page
dc.creatorClifton, T.
dc.creatorBarrow, John D.
dc.date2007-01-12
dc.date.accessioned2026-07-07T11:01:35Z
dc.date.available2026-07-07T11:01:35Z
dc.descriptionWe investigate homogeneous and isotropic oscillating cosmologies with multiple fluid components. Transfer of energy between these fluids is included in order to model the effects of non-equilibrium behavior on closed universes. We find exact solutions which display a range of new behaviors for the expansion scale factor. Detailed examples are studied for the exchange of energy from dust or scalar field into radiation. We show that, contrary to expectation, it is unlikely that such models can offer a physically viable solution to the flatness problem.
dc.description15 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/gr-qc/0701070
dc.identifierhttp://arxiv.org/abs/gr-qc/0701070
dc.identifierPhys.Rev.D75:043515,2007
dc.identifierdoi:10.1103/PhysRevD.75.043515
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187992
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleThe Ups and Downs of Cyclic Universes
dc.typetext

Files

Collections

arXiv