Search for manifestations of spin-torsion coupling

Fuente: arXiv
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Hauptverfasser: Trukhanova, Mariya Iv., Andreev, Pavel, Obukhov, Yuri N.
Format: Preprint
Veröffentlicht: 2022
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author Trukhanova, Mariya Iv.
Andreev, Pavel
Obukhov, Yuri N.
author_facet Trukhanova, Mariya Iv.
Andreev, Pavel
Obukhov, Yuri N.
contents We investigate the axial vector torsion-spin 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.
format Preprint
id arxiv_https___arxiv_org_abs_2212_13871
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Search for manifestations of spin-torsion coupling
Trukhanova, Mariya Iv.
Andreev, Pavel
Obukhov, Yuri N.
General Relativity and Quantum Cosmology
High Energy Physics - Theory
We investigate the axial vector torsion-spin 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.
title Search for manifestations of spin-torsion coupling
topic General Relativity and Quantum Cosmology
High Energy Physics - Theory
url https://arxiv.org/abs/2212.13871