Fate of initial perturbation in the Jordan-Brans-Dicke gravity

Details Fate of initial perturbation in the Jordan-Brans-Dicke gravity Fate of initial perturbation in the Jordan-Brans-Dicke gravity

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..43.2549s&link_type=abstract

Physical Review D (Particles and Fields), Volume 43, Issue 8, 15 April 1991, pp.2549-2554

Physics

2

Scientific paper

During the epoch of extended inflation the variation of the gravitational constant is crucial to facilitate the percolation of a true vacuum. In a relevant gravity theory we analyze the problem of evolving instability against linear perturbation in a static spherically symmetric background by constructing an exact solution to the Cauchy problem. Our analysis greatly affects primordial black-hole formation and gravitational-wave emission during extended inflation.

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