High frequency oscillations of Newton's constant induced by inflation

Details High frequency oscillations of Newton's constant induced by inflation High frequency oscillations of Newton's constant induced by inflation

1994-09-15

arxiv.org/abs/astro-ph/9409041v1

Phys.Rev.D52:628-639,1995

Astronomy and Astrophysics

Astrophysics

30 pages, Penn Preprint UPR-0628T, Wash. U. Preprint WUGRAV 94-10 Four figures available by ftp (read comment at head of file)

Scientific paper

10.1103/PhysRevD.52.628

We examine the possibility that an epoch of inflationary expansion induces high-frequency oscillations of Newton's constant, $G$. The effect occurs because inflation can shift the expectation value of a non-minimally coupled, Brans-Dicke-like field away from the minimum of its effective potential. At some time after inflation ends, the field begins to oscillate, resulting in periodic variations in $G$. We find conditions for which the oscillation energy would be sufficient to close the universe, consistent with all known constraints from cosmology and local tests of general relativity.

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