Kaluza-Klein theory and Machian cosmology

Details Kaluza-Klein theory and Machian cosmology Kaluza-Klein theory and Machian cosmology

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994gregr..26..555w&link_type=abstract

General Relativity and Gravitation, Volume 26, Issue 6, pp.555-566

Mathematics

Logic

19

Scientific paper

We interpret the 15 equations of Kaluza-Klein gravity as 10 Einstein equations, 1 wave equation and 4 equations of motion. An exact cosmological solution of the apparently empty 5D field equations describes a 4D fluid with an effective density and pressure induced by the curvature associated with the fifth dimension. The rest mass of a particle in the fluid depends on the global solution and changes slowly with time. This approach to Kaluza-Klein theory in general results in Machian cosmologies.

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