Gravitation: In search of the missing torsion
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Abstract
A linear Lorentz connection has always two fundamental derived characteristics: curvature and torsion. The latter is assumed to vanish in general relativity. Three gravitational models involving non-vanishing torsion are examined: teleparallel gravity, Einstein-Cartan, and new general relativity. Their dependability is critically examined. Although a final answer can only be given by experience, it is argued that teleparallel gravity provides the most consistent approach.
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Annales de la Fondation Louis de Broglie, v. 32, n. 2-3, p. 229-251, 2007.
