Physics
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phrvd..84d4004g&link_type=abstract
Physical Review D, vol. 84, Issue 4, id. 044004
Physics
Exact Solutions, Mathematical And Relativistic Aspects Of Cosmology
Scientific paper
By using the Bousso geometrical covariant procedure we consider in this paper the holographic principle as applied to asymptotic Friedmann-Robertson-Walker space-times whose vacuum dark energy is due to the presence of a quintessential dark and phantom-energy scalar field with constant equation of state p=ωρ, both for w>-1 and w<-1. We have obtained the positions of the optimal screen for each case, deriving for them moreover expressions for the future event horizon and hence holographic dark-energy models of the Li and Huang and Li types, which are compared with the most consistent results derived from the covariant Bousso procedure. It is also seen that one of the two obtained holographic screens is placed on the big rip hypersurface in the phantom-energy case, both for the covariant holographic formalism and holographic phantom models. Consistency of fundamental theories is analyzed in the light of the largest physical regions allowed by the existence of a holographic screen in the future.
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