On the generalised Chaplygin gas: worse than a big rip or quieter than a sudden singularity?

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dc.creatorBouhmadi-Lopez, Mariam
dc.creatorGonzalez-Diaz, Pedro F.
dc.creatorMartin-Moruno, Prado
dc.date2007-07-16
dc.date2008-03-11
dc.date.accessioned2026-07-07T12:39:37Z
dc.date.available2026-07-07T12:39:37Z
dc.descriptionAlthough it has been believed that the models with generalised Chaplygin gas do not contain singularities, in a previous work we have studied how a big freeze could take place in some kinds of phantom generalised Chaplygin gas. In the present work, we study some types of generalised Chaplygin gas in order to show how different sorts of singularities could appears in such models, in the future or in the past. We point out that: (i) singularities may not be originated from the phantom nature of the fluid, and (ii) if initially the tension of the brane in a brane-world Chaplygin model is large enough then an infrared cut off appears in the past.
dc.description19 pages, 6 figures. Discussion expanded and references added. Version to appear in the International Journal of Modern Physics D
dc.identifierhttps://arxiv.org/abs/0707.2390
dc.identifierhttp://arxiv.org/abs/0707.2390
dc.identifierInt.J.Mod.Phys.D17:2269-2290,2008
dc.identifierdoi:10.1142/S0218271808013856
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219170
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleOn the generalised Chaplygin gas: worse than a big rip or quieter than a sudden singularity?
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