General relativity as a cosmological attractor of tensor-scalar theories

Thibault Damour and Kenneth Nordtvedt
Phys. Rev. Lett. 70, 2217 – Published 12 April 1993
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Abstract

Tensor-scalar theories of gravity are shown to generically contain an attractor mechanism toward general relativity, with the redshift at the beginning of the matter-dominated era providing the measure for the present level of deviation from general relativity. Quantitative estimates for the post-Newtonian parameters γ-1, β-1, and Ġ/G are given, which give greater significance to future improvements of solar-system gravitational tests.

  • Received 17 December 1992

DOI:https://doi.org/10.1103/PhysRevLett.70.2217

©1993 American Physical Society

Authors & Affiliations

Thibault Damour

  • Institut des Hautes Etudes Scientifiques, 91440 Bures-sur-Yvette France
  • Département d’Astrophysique Relativiste et de Cosmologie, Observatoire de Paris, Centre National de la Recherche Scientifique, 92195 Meudon, France

Kenneth Nordtvedt

  • Institut des Hautes Etudes Scientifiques, 91440 Bures-sur-Yvette, France
  • Department of Physics, Montana State University, Bozeman, Montana 59717

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Vol. 70, Iss. 15 — 12 April 1993

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