Tunneling in a Cosmological Model with Violation of Strong Energy Condition

Details Tunneling in a Cosmological Model with Violation of Strong Energy Condition Tunneling in a Cosmological Model with Violation of Strong Energy Condition

1998-11-24

arxiv.org/abs/gr-qc/9811081v1

Mod.Phys.Lett. A13 (1998) 3213-3224

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, LaTeX

Scientific paper

10.1142/S0217732398003429

The tunneling rate, with exact prefactor, is calculated to first order in \hbar for a closed FRW universe filled with perfect fluid violating the strong energy condition. The calculations are performed by applying the dilute-instanton approximation on the corresponding Duru-Kleinert path integral. It is shown that a closed FRW universe filled with a perfect fluid with small violation of strong energy condition is more probable to tunnel than the same universe with large violation of strong energy condition.

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