Crossing the phantom divide in an interacting generalized Chaplygin gas

Simple item page
dc.creatorGarcia-Compean, H.
dc.creatorGarcia-Jimenez, G.
dc.creatorObregon, O.
dc.creatorRamirez, C.
dc.date2007-10-23
dc.date2008-06-09
dc.date.accessioned2026-07-07T11:53:45Z
dc.date.available2026-07-07T11:53:45Z
dc.descriptionUnified generalized Chaplygin gas models assuming an interaction between dark energy and dark matter fluids have been previously proposed. Following these ideas, we consider a particular relation between dark densities, which allows the possibility of a time varying equation of state for dark energy that crosses the phantom divide at a recent epoch. Moreover, these densities decay during all the evolution of the Universe, avoiding a Big Rip. We find also a scaling solution, i.e. these densities are asymptotically proportional in the future, which contributes to the solution of the coincidence problem.
dc.descriptionImproved version, 10 pages, 4 figures, References added
dc.identifierhttps://arxiv.org/abs/0710.4283
dc.identifierhttp://arxiv.org/abs/0710.4283
dc.identifierJCAP0807:016,2008
dc.identifierdoi:10.1088/1475-7516/2008/07/016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204651
dc.subjectHigh Energy Physics - Theory
dc.titleCrossing the phantom divide in an interacting generalized Chaplygin gas
dc.typetext

Files

Collections

arXiv