Challenging matter creation models in the phantom divide

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dc.contributor.authorCardenas, Victor H.
dc.contributor.authorCruz, Miguel
dc.contributor.authorLepe, Samuel
dc.contributor.authorNojiri, Shin’ichi
dc.contributor.authorOdintsov, Sergei D.
dc.date.accessioned2021-08-26T17:22:34Z
dc.date.available2021-08-26T17:22:34Z
dc.date.issued2020
dc.description.abstractWe perform a study both statistical and theoretical for cosmological models of matter creation and their ability to describe effective phantom models of dark energy. Such models are beyond the ΛCDM model since the resulting cosmic expansion is not adiabatic. In fact, we show that this approach exhibits transient phantom/quintessence scenarios at present time and tends to the standard cosmological model at some stage of the cosmic evolution. We discuss some generalities of the thermodynamics properties for this type of cosmological model; we emphasize on the behavior of the temperature associated to dark matter, which keeps positive along cosmic evolution together with the entropy. The enrichment of this type of model by means of the incorporation of cosmological constant and dissipative effects in the fluid description to explore their cosmological consequences in the expansion of the Universe is considered. Finally, a generalization for the matter production rate as an inhomogeneous expression of the Hubble parameter and its derivatives is discussed; as in all the cases examined, such election leads to an effective phantom/quintessence behavioren_ES
dc.identifier.doi10.1103/PhysRevD.101.083530
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/2275
dc.language.isoenen_ES
dc.publisherAmerican Physical Societyen_ES
dc.sourcePhysical Review Den_ES
dc.subjectCOSMOLOGYen_ES
dc.subjectDARK ENERGYen_ES
dc.subjectDARK MATTERen_ES
dc.subjectEVOLUTION OF THE UNIVERSEen_ES
dc.titleChallenging matter creation models in the phantom divideen_ES
dc.typeArticuloen_ES
uv.catalogadorRCR DIBRAen_ES

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