General relativity with a background metric

Details General relativity with a background metric General relativity with a background metric

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980foph...10..673r&link_type=abstract

Foundations of Physics, Volume 10, Issue 9-10, pp. 673-704

Physics

32

Scientific paper

An attempt is made to remove singularities arising in general relativity by modifying it so as to take into account the existence of a fundamental rest frame in the universe. This is done by introducing a background metric γμν (in addition to gμν) describing a spacetime of constant curvature with positive spatial curvature. The additional terms in the field equations are negligible for the solar system but important for intense fields. Cosmological models are obtained without singular states but simulating the “big bang.” The field of a particle differs from the Schwarzschild field only very close to, and inside, the Schwarzschild sphere. The interior of this sphere is unphysical and impenetrable. A star undergoing gravitational collapse reaches a state in which it fills the Schwarzschild sphere with uniform density (and pressure) and has the geometry of a closed Einstein universe. Any charge present is on the surface of the sphere. Elementary particles may have similar structures.

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