Classical analogous of quantum cosmological perfect fluid models

Details Classical analogous of quantum cosmological perfect fluid models Classical analogous of quantum cosmological perfect fluid models

2000-11-28

arxiv.org/abs/gr-qc/0011102v1

Phys.Lett. A283 (2001) 62-70

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex file, 10 pages, 3 figures

Scientific paper

10.1016/S0375-9601(01)00229-8

Quantization in the mini-superspace of a gravity system coupled to a perfect fluid, leads to a solvable model which implies singularity free solutions through the construction of a superposition of the wavefunctions. We show that such models are equivalent to a classical system where, besides the perfect fluid, a repulsive fluid with an equation of state $p_Q = \rho_Q$ is present. This leads to speculate on the true nature of this quantization procedure. A perturbative analysis of the classical system reveals the condition for the stability of the classical system in terms of the existence of an anti-gravity phase.

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