Semi-Teleparallel Theories of Gravitation |
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Authors: | Christopher Kohler |
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Institution: | (1) Institut für Theoretische und Angewandte Physik, Universität Stuttgart, D-70550 Stuttgart, Germany |
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Abstract: | A class of theories of gravitation that naturally incorporates preferred frames of reference is presented. The underlying space-time geometry consists of a partial parallelization of space-time and has properties of Riemann—Cartan as well as teleparallel geometry. Within this geometry, the kinematic quantities of preferred frames are associated with torsion fields. Using a variational method, it is shown in which way action functionals for this geometry can be constructed. For a special action the field equations are derived and the coupling to spinor fields is discussed. |
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Keywords: | Preferred frames of reference non-Riemannian geometry kinematic quantities alternative theories of gravitation |
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