Cosmological Dynamics of Phantom Field

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dc.contributor.authorSingh, Parampreet
dc.contributor.authorSami, M.
dc.contributor.authorDadhich, Naresh
dc.date.accessioned2012-03-09T07:30:03Z
dc.date.available2012-03-09T07:30:03Z
dc.date.issued2011-07-05
dc.description.abstractWe study the general features of the dynamics of the phantom field in the cosmological context. In the case of inverse coshyperbolic potential, we demonstrate that the phantom field can successfully drive the observed current accelerated expansion of the universe with the equation of state parameter wφ < −1. The de-Sitter universe turns out to be the late time attractor of the model. The main features of the dynamics are independent of the initial conditions and the parameters of the model. The model fits the supernova data very well, allowing for −2.4 < wφ < −1 at 95 % confidence levelen_US
dc.identifier.urihttp://hdl.handle.net/11007/1013
dc.language.isoenen_US
dc.relation.ispartofseriesIUCAA Preprints;26/03
dc.subjectCosmologicalen_US
dc.subjectCosmological Dynamicsen_US
dc.titleCosmological Dynamics of Phantom Fielden_US
dc.typeArticleen_US

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