Ether theory of gravitation: why and how?

Details Ether theory of gravitation: why and how? Ether theory of gravitation: why and how?

2004-01-07

arxiv.org/abs/gr-qc/0401021v2

Ether, space-time and cosmology, Vol. 1: Modern ether concepts, relativity and geometry (M. C. Duffy and J. Levy, Eds.), PD Pu

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Standard LaTeX, 60 pages. Invited contribution to the book ``Ether, Spacetime and Cosmology" (M. C. Duffy, ed.), to appear at

Scientific paper

Gravitation might make a preferred frame appear, and with it a clear space/time separation--the latter being, a priori, needed by quantum mechanics (QM) in curved space-time. Several models of gravitation with an ether are discussed: they assume metrical effects in an heterogeneous ether and/or a Lorentz-symmetry breaking. One scalar model, starting from a semi-heuristic view of gravity as a pressure force, is detailed. It has been developed to a complete theory including continuum dynamics, cosmology, and links with electromagnetism and QM. To test the theory, an asymptotic scheme of post-Newtonian approximation has been built. That version of the theory which is discussed here predicts an internal-structure effect, even at the point-particle limit. The same might happen also in general relativity (GR) in some gauges, if one would use a similar scheme. Adjusting the equations of planetary motion on an ephemeris leaves a residual difference with it; one should adjust the equations using primary observations. The same effects on light rays are predicted as with GR, and a similar energy loss applies to binary pulsars.

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