Time-dependent gravitational coupling and torsion

Details Time-dependent gravitational coupling and torsion Time-dependent gravitational coupling and torsion

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrvl..52.1843r&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 52, May 21, 1984, p. 1843, 1844.

Other

15

Gravitation Theory, Particle Spin, Time Dependence, Torsion, Coupled Modes, Integral Equations, Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity, Other Topics In General Relativity And Gravitation

Scientific paper

In the context of Einstein-Cartan-Sciama-Kibble theory, modified to include a time-dependent gravitational coupling G(t) torsion is shown to be proportional to the variation G(dot)/G. The magnitude of this effect based on recent experimental evidence is substantially greater than the usual spin-dependent torsion effects predicted by standard Einstein-Cartan-Sciama-Kibble theory. It is suggested that the detection of a time-varying G could provide evidence for the existence of torsion.

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