ƒ Gravity and gravitational singularities

Sivaram, C. ; Sinha, K. P. ; Lord , Eric A. (1974) ƒ Gravity and gravitational singularities Nature, 249 . pp. 640-641. ISSN 0028-0836

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Official URL: http://www.nature.com/nature/journal/v249/n5458/ab...

Related URL: http://dx.doi.org/10.1038/249640a0


Trautman has postulated that the usual space-time singularity occurring in classical cosmological models and in the gravitational collapse of massive objects could be averted if intrinsic spin effects are incorporated into general relativity by adding torsion terms to the usual Einstein field equations, that is through the Einstein-Cartan theory. Invoking a primordial magnetic field for aligning all the individual nuclear spins he shows that his universe consisting of 10 aligned neutrons collapses to a minimum radius of the order of 1 cm with a corresponding matter density of 10 g cm.

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