Prospects of detecting spacetime torsion

Dirk Puetzfeld; Yuri N. Obukhov

Prospects of detecting spacetime torsion

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arxiv 1405.4137 v1 pith:V5DO77HL submitted 2014-05-16 gr-qc astro-ph.COhep-th

Dirk Puetzfeld , Yuri N. Obukhov This is my paper

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keywords torsionspacetimetheoriesnonminimaltestadmittinganswerbasis

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How to detect spacetime torsion? In this essay we provide the theoretical basis for an answer to this question. Multipolar equations of motion for a very general class of gravitational theories with nonminimal coupling in spacetimes admitting torsion are given. Our findings provide a framework for the systematic testing of whole classes of theories with the help of extended test bodies. One surprising feature of nonminimal theories turns out to be their potential sensitivity to torsion of spacetime even in experiments with ordinary (not microstructured) test matter.

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Infrared foundations for quantum geometry II: Catalogue of all torsion-like theories including new ghost-tachyon-free cases
hep-th 2025-07 conditional novelty 7.0 of 10

A systematic catalogue of symmetric pair-antisymmetric rank-three field theories yields 22 ghost-tachyon-free models, all propagating vector torsion and none propagating scalar or pseudoscalar torsion.

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