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

Paul J. Steinhardt, Clifford M. Will

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


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 nonminimally 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.

Original languageEnglish (US)
Pages (from-to)628-639
Number of pages12
JournalPhysical Review D
Issue number2
StatePublished - 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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