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Tunneling in a Cosmological Model with Violation of Strong Energy Condition

M. A. Jafarizadeh·F. Darabi·A. Rezaei-Aghdam·A. R. Rastegar
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Abstract

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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M. A. Jafarizadeh, F. Darabi, A. Rezaei-Aghdam, A. R. Rastegar. 1998-11-24. Tunneling in a Cosmological Model with Violation of Strong Energy Condition. https://doi.org/10.1142/s0217732398003429

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