New constraints in dynamical torsion theory

Details New constraints in dynamical torsion theory New constraints in dynamical torsion theory

2001-01-14

arxiv.org/abs/gr-qc/0101053v1

Gen.Rel.Grav. 25 (1993) 349-359

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

The most general Lagrangian for dynamical torsion theory quadratic in curvature and torsion is considered. We impose two simple and physically reasonable constraints on the solutions of the equations of motion: (i) there must be solutions with zero curvature and nontrivial torsion and (ii) there must be solutions with zero torsion and non covariantly constant curvature. The constraints reduce the number of independent coupling constants from ten to five. The resulting theory contains Einstein's general relativity and Weitzenbock's absolute parallelism theory as the two sectors.

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