Search for Manifestations of Spin–Torsion Coupling

Trukhanova, Mariya Iv.; Andreev, Pavel; Obukhov, Yuri N.

doi:10.3390/universe9010038

Open AccessArticle

Search for Manifestations of Spin–Torsion Coupling

by

Mariya Iv. Trukhanova

^1,2,

Pavel Andreev

¹ and

Yuri N. Obukhov

^2,*

¹

Faculty of Physics, M. V. Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia

²

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

^*

Author to whom correspondence should be addressed.

Universe 2023, 9(1), 38; https://doi.org/10.3390/universe9010038

Submission received: 30 November 2022 / Revised: 28 December 2022 / Accepted: 30 December 2022 / Published: 6 January 2023

(This article belongs to the Special Issue Torsion-Gravity and Spinors in Fundamental Theoretical Physics)

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Abstract

We investigate the axial vector spin–torsion coupling effects in the framework of the Poincaré gauge theory of gravity with the general Yang–Mills type Lagrangian. The dynamical equations for the “electric” and “magnetic” components of the torsion field variable are obtained in the general form and it is shown that the helicity density and the spin density of the electromagnetic field appear as the physical sources. The modified Maxwell’s equations for the electromagnetic field are derived, and the electromagnetic wave propagation under the action of the uniform homogeneous torsion field is considered. We demonstrate the Faraday effect of rotation of the polarization for such a wave and establish the strong bound on the possible cosmic axial torsion field from the astrophysical data.

Keywords: spin; gauge gravity; torsion; electromagnetic wave; Faraday effect

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MDPI and ACS Style

Trukhanova, M.I.; Andreev, P.; Obukhov, Y.N. Search for Manifestations of Spin–Torsion Coupling. Universe 2023, 9, 38. https://doi.org/10.3390/universe9010038

AMA Style

Trukhanova MI, Andreev P, Obukhov YN. Search for Manifestations of Spin–Torsion Coupling. Universe. 2023; 9(1):38. https://doi.org/10.3390/universe9010038

Chicago/Turabian Style

Trukhanova, Mariya Iv., Pavel Andreev, and Yuri N. Obukhov. 2023. "Search for Manifestations of Spin–Torsion Coupling" Universe 9, no. 1: 38. https://doi.org/10.3390/universe9010038

APA Style

Trukhanova, M. I., Andreev, P., & Obukhov, Y. N. (2023). Search for Manifestations of Spin–Torsion Coupling. Universe, 9(1), 38. https://doi.org/10.3390/universe9010038

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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