Cosmological consequences of high-frequency oscillations of Newtons constant

Frank S. Accetta, Paul J. Steinhardt

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


We show that high-frequency, small-amplitude oscillations of Newtons constant G can dramatically alter cosmology even if the frequency is very high compared to the expansion rate. For example, it is possible to have a spatially flat universe in which dynamical tests of ==(matter density)/(critical density)tests which attempt to directly measure the mass density of the universe obtain values less than unity (==0.10.3, say). The cosmological effects can be obtained in a frequency-amplitude range allowed by all known constraints on G and its time derivative.

Original languageEnglish (US)
Pages (from-to)298-301
Number of pages4
JournalPhysical review letters
Issue number3
StatePublished - 1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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