Selected Honorable Mention EssaysNo Access

Prospects of detecting spacetime torsion

ZARM, University of Bremen, Am Fallturm, 28359 Bremen, Germany

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Theoretical Physics Laboratory, Nuclear Safety Institute, Russian Academy of Sciences, B.Tulskaya 52, 115191 Moscow, Russia

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https://doi.org/10.1142/S0218271814420048Cited by:29 (Source: Crossref)

Abstract

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.

This essay received an Honorable Mention in the 2014 Essay Competition of the Gravity Research Foundation.

Keywords:

PACS: 04.50.Kd, 04.20.Cv, 04.20.Fy

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