Propagating torsion from first principles

Details Propagating torsion from first principles Propagating torsion from first principles

1996-09-03

arxiv.org/abs/gr-qc/9609011v1

Gen.Rel.Grav. 29 (1997) 205

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Revtex, 19 pages

Scientific paper

A propagating torsion model is derived from the requirement of compatibility between minimal action principle and minimal coupling procedure in Riemann-Cartan spacetimes. In the proposed model, the trace of the torsion tensor is derived from a scalar potential that determines the volume element of the spacetime. The equations of the model are written down for the vacuum and for various types of matter fields. Some of their properties are discussed. In particular, we show that gauge fields can interact minimally with the torsion without the breaking of gauge symmetry.

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