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Entanglement entropy of an accelerating universe

AuthorsGonzález-Díaz, Pedro F. ; Sigüenza, Carmen L.; Martín-Carrión, Juan
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review D - Particles, Fields, Gravitation and Cosmology 86: 027501 (2012)
AbstractWe have considered the existence of a dependence of the entanglement entropy on the cosmological horizon surface area also in several accelerating models of the current universe both for a quintessence scalar field and for a phantom-energy scenario. It is shown that if a quintessence vacuum cosmic field is considered then, though the case for w>-1 satisfies a second law for entanglement entropy, when w<-1 such a law is violated. It is finally noted that the entanglement entropy and the distinct formulations of cosmic holography share common future surfaces which are optimal screen for the latter descriptions. © 2012 American Physical Society.
Identifiersdoi: 10.1103/PhysRevD.86.027501
issn: 1550-7998
Appears in Collections:(CFMAC-IFF) Artículos
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