The generalized second law of thermodynamics in Horava-Lifshitz cosmology - High Energy Physics - TheoryReportar como inadecuado




The generalized second law of thermodynamics in Horava-Lifshitz cosmology - High Energy Physics - Theory - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We investigate the validity of the generalized second law of thermodynamicsin a universe governed by Horava-Lifshitz gravity. Under the equilibriumassumption, that is in the late-time cosmological regime, we calculateseparately the entropy time-variation for the matter fluid and, using themodified entropy relation, that of the apparent horizon itself. We find thatunder detailed balance the generalized second law is generally valid for flatand closed geometry and it is conditionally valid for an open universe, whilebeyond detailed balance it is only conditionally valid for all curvatures.Furthermore, we also follow the effective approach showing that it can lead tomisleading results. The non-complete validity of the generalized second lawcould either provide a suggestion for its different application, or act as anadditional problematic feature of Horava-Lifshitz gravity.



Autor: Mubasher Jamil, Emmanuel N. Saridakis, M. R. Setare

Fuente: https://arxiv.org/



DESCARGAR PDF




Documentos relacionados