Quantum bounds for gravitational de Sitter entropy and the Cardy-Verlinde formula
High Energy Physics - Theory
2009-09-17 v2
Abstract
We analyze different types of quantum corrections to the Cardy-Verlinde entropy formula in a Friedmann-Robertson-Walker universe and in an (anti)-de Sitter space. In all cases we show that quantum corrections can be represented by an effective cosmological constant which is then used to redefine the parameters entering the Cardy-Verlinde formula so that it becomes valid also with quantum corrections, a fact that we interpret as a further indication of its universality. A proposed relation between Cardy-Verlinde formula and the ADM Hamiltonian constraint is given.
Cite
@article{arxiv.hep-th/0105052,
title = {Quantum bounds for gravitational de Sitter entropy and the Cardy-Verlinde formula},
author = {Shin'ichi Nojiri and Octavio Obregon and Sergei D. Odintsov and Hernando Quevedo and Mike P. Ryan},
journal= {arXiv preprint arXiv:hep-th/0105052},
year = {2009}
}
Comments
LaTeX file, 15 pages, reference is added