Massive, non-ghost solutions for the Dirac field coupled self-consistently to gravity
type: Item
instance of: scholarly article
title: Massive, non-ghost solutions for the Dirac field coupled self-consistently to gravity
zbMATH Open document ID: 0907.53053
DOI: 10.1023/A:1018830329120
author: Anthony Challinor
author: A. N. Lasenby
author: Chris Doran
author: Stephen F. Gull
published in: General Relativity and Gravitation
publication date: 1998-06-08T00:00:00Z
review text: The authors present new massive non-ghost solutions for the Einstein-Cartan-Dirac equations. The spin of the Dirac field is identified with the torsion of the gauge field by means of a gauge-theoretical formulation of gravity. The authors find expanding and collapsing singular solutions and a solution which expands from a singularity before recollapsing. In the solutions of cosmological importance, torsion effects are only relevant while the Compton wavelength of the Dirac field is larger than the Hubble radius and lead to anisotropy in the solutions. The authors study the motion of spinning point-particles in the background of the expanding solution. The anisotropy due to the torsion is evident in the particle trajectories.
Mathematics Subject Classification ID: 53Z05
Mathematics Subject Classification ID: 83C15
Mathematics Subject Classification ID: 83C47
Mathematics Subject Classification ID: 83F05
zbMATH DE Number: 1160502
zbMATH Keywords: torsion
zbMATH Keywords: Dirac fields in curved spacetime
zbMATH Keywords: anisotropy
zbMATH Keywords: motion of spinning point-particles
reviewed by: Heinz Dehnen
MaRDI profile type: Publication
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full work available at URL: a:1018830329120
OpenAlex ID: W116631525
description: scientific article; zbMATH DE number 1160502