Relating Friedmann equation to Cardy formula in universes with cosmological constant
arXiv:hep-th/0101073 · doi:10.1016/S0370-2693(01)00237-4
Abstract
A relation between the Friedmann equation and the Cardy formula has been found for de Sitter closed and Anti de Sitter flat universes. For the remaining (Anti) de Sitter universes the arguments fail, and we speculate whether the general philosophy of holography can be satisfied in such contents.
11 pages, Latex file, References added. New version to be published in Phys. Lett. B