Periodic Bounce for Nucleation Rate at Finite Temperature in Minisuperspace Models

Details Periodic Bounce for Nucleation Rate at Finite Temperature in Minisuperspace Models Periodic Bounce for Nucleation Rate at Finite Temperature in Minisuperspace Models

1999-09-21

arxiv.org/abs/hep-th/9909142v1

Phys.Rev. D62 (2000) 025017

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 5 postscript figures included

Scientific paper

10.1103/PhysRevD.62.025017

The periodic bounce configurations responsible for quantum tunneling are obtained explicitly and are extended to the finite energy case for minisuperspace models of the Universe. As a common feature of the tunneling models at finite energy considered here we observe that the period of the bounce increases with energy monotonically. The periodic bounces do not have bifurcations and make no contribution to the nucleation rate except the one with zero energy. The sharp first order phase transition from quantum tunneling to thermal activation is verified with the general criterions.

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