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Einstein-Cartan-Dirac theory in the low-energy limit

Singh, P., Ryder, Lewis H. (1997) Einstein-Cartan-Dirac theory in the low-energy limit. Classical and Quantum Gravity, 14 (12). pp. 3513-3525. ISSN 0264-9381. (doi:10.1088/0264-9381/14/12/031) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:17953)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1088/0264-9381/14/12/031

Abstract

We look for manifestations of the effects of torsion in the low-energy limit in the context of Einstein-Cartan-Dirac theory (or any theory of gravity in which the torsion tensor is purely axial). To proceed, we introduce the mathematical law governing the transport of orthonormal bases or tetrads in a spacetime with torsion. This law is applied to compute the metric and connection in a rotating and accelerating frame, or laboratory. A spin- 1/2 particle is placed in this rotating and accelerating frame and the low-energy limit of the Dirac equation is taken by means of the Foldy-Wouthuysen transformation. In addition to obtaining the Bonse-Wroblewski phase shift due to acceleration, Sagnac-type effects, rotation-spin couplings of the Mashhoon type, redshift of the kinetic energy and the spin-orbit coupling term of Hehl and Ni, we also obtain several interesting and significant terms as a consequence of introducing torsion into spacetime. We give a detailed interpretation of these additional terms and discuss their observability in the light of current well-known experimental techniques.

Item Type: Article
DOI/Identification number: 10.1088/0264-9381/14/12/031
Subjects: Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: T.J. Sango
Date Deposited: 13 May 2009 05:58 UTC
Last Modified: 16 Nov 2021 09:56 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/17953 (The current URI for this page, for reference purposes)

University of Kent Author Information

Ryder, Lewis H..

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