False vacuum decay in Jordan-Brans-Dicke cosmologies

Details False vacuum decay in Jordan-Brans-Dicke cosmologies False vacuum decay in Jordan-Brans-Dicke cosmologies

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989fvjb.rept.....h&link_type=abstract

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Mathematics

Bubbles, Cosmology, Gravitational Constant, Mathematical Models, Nucleation, Vacuum, Gas-Liquid Interactions, Phase Transformations, Time Dependence

Scientific paper

The bubble nucleation rate in a first-order phase transition taking place in a background Jordan-Brans-Dicke cosmology is examined. The leading order terms in the nucleation rate when the Jordan-Brans-Dicke field is large (i.e., late times) are computed by means of a Weyl rescaling of the fields in the theory. It is found that despite the fact that the Jordan-Brans-Dicke field (hence the effective gravitational constant) has a time dependence in the false vacuum at late times the nucleation rate is time independent.

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