Mar 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ijtp...37.1121t&link_type=abstract
International Journal of Theoretical Physics, Vol. 37, No. 3, p. 1121 - 1139
Physics
12
Cosmology: Robertson-Walker Metric
Scientific paper
A prerelativistic approach to particle dynamics is explored in an expanding Robertson-Walker cosmology. The receding galactic background provides a distinguished frame of reference and a unique cosmic time. In this context the relativistic, purely geometric space-time concept is criticized. Physical space is regarded as a permeable medium, the cosmic ether, which effects the world-lines of particles and rays. The author studies in detail a Robertson-Walker universe with linear expansion factor and negatively curved, open three-space; he chooses the permeability tensor of the ether in such a way that the semiclassical approximation is exact. Galactic red-shifts depend on the refractive index of the ether. In the local Minkowskian limit the ether causes a time variation of mass, which scales inversely proportional to cosmic time. In the globally geodesic rest frames of galactic observers the ether manifests itself in an unbounded speed of signal transfer, in bifurcations of world-lines, and in time inversion effects.
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