Effects of spin-torsion in gauge theory gravity

被引：14

作者：

Doran, C ^{[1
]}

Lasenby, A ^{[1
]}

Challinor, A ^{[1
]}

Gull, S ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Mullard Radio Astron Observ, Cambridge CB3 0HE, England

来源：

JOURNAL OF MATHEMATICAL PHYSICS | 1998年 / 39卷 / 06期

关键词：

D O I：

10.1063/1.532255

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spin-torsion sector of a new gauge-theoretic formulation of gravity is analyzed and the relationship to the Einstein-Cartan-Kibble-Sciama theory of gravity is discussed. The symmetries of the Riemann tensor and the conservation laws of the theory are derived. This formalism is applied to the problem of a. Dirac field coupled self-consistently to gravity. The equations derived from a minimally coupled gauge-invariant Lagrangian naturally give the gauge-theoretic analogs of the Einstein-Cartan-Dirac equations. Finally, a semiclassical model for a spinning point-particle moving in a gravitational background with torsion is considered. (C) 1998 American Institute of Physics.

引用

页码：3303 / 3321

页数：19

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