Metric redefinitions in Einstein-AEther theory

被引：33

作者：

Foster, BZ ^{[1
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.72.044017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Einstein-AE ther theory, in which gravity couples to a dynamical, timelike, unit-norm vector field, provides a means for studying Lorentz violation in a generally covariant setting. Demonstrated here is the effect of a redefinition of the metric and "ae ther" fields in terms of the original fields and two free parameters. The net effect is a change of the coupling constants appearing in the action. Using such a redefinition, one of the coupling constants can be set to zero, simplifying studies of solutions of the theory.

引用

页码：1 / 5

页数：5

共 4 条

[1] Lorentz violations and Euclidean signature metrics -: art. no. 087501 [J].