Quantum bounds for gravitational de Sitter entropy and the Cardy-Verlinde formula

Details Quantum bounds for gravitational de Sitter entropy and the Cardy-Verlinde formula Quantum bounds for gravitational de Sitter entropy and the Cardy-Verlinde formula

2001-05-07

arxiv.org/abs/hep-th/0105052v2

Mod.Phys.Lett.A16:1181-1192,2001

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 15 pages, reference is added

Scientific paper

10.1142/S0217732301004418

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.

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