Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
Volume 23, Issue 12, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218271814420048
Keywords
Equations of motion; modified gravity theories; spacetime torsion
Categories
Funding
- Deutsche Forschungsgemeinschaft (DFG) [LA-905/8-1/2]
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How to detect spacetime torsion? In this paper, 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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