Rippled Cosmological Dark Matter from Damped Oscillating Newton Constant

Abstract

Let the reciprocal Newton 'constant' be an apparently non-dynamical Brans-Dicke scalar field damped oscillating towards its General Relativistic VEV. We show, without introducing additional matter fields or dust, that the corresponding cosmological evolution averagely resembles, in the Jordan frame, the familiar dark radiation -> dark matter -> dark energy domination sequence. The fingerprints of our theory are fine ripples, hopefully testable, in the FRW scale factor; they die away at the General Relativity limit. The possibility that the Brans-Dicke scalar also serves as the inflaton is favorably examined.

arXiv commentRevTex4, 12 pages, 5 figures; Minor revision, References added

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Cited by in corpus (11)

• f(R) Theories Of Gravity
• Extended Theories of Gravity
• Cosmological evolution in R^2 gravity
• The Cauchy problem of f(R) gravity
• Friedmann Equation for Brans Dicke Cosmology
• Observational Constraints on Undulant Cosmologies
• Constraining Temporal Oscillations of Cosmological Parameters Using Type Ia Supernovae
• The redshift distribution of absorption-line systems in QSO spectra
• Is spacetime absolutely or just most probably Lorentzian?
• From DeWitt initial condition to Cosmological Quantum Entanglement
• Can hyperbolic phase of Brans-Dicke field account for Dark Matter?