Primordial torsion fields as an explanation of the anisotropy in cosmological electromagnetic propagation

被引：17

作者：

Dobado, A ^{[1
]}

Maroto, AL

机构：

[1] Univ Complutense Madrid, Dept Fis Teor, E-28040 Madrid, Spain

[2] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain

来源：

MODERN PHYSICS LETTERS A | 1997年 / 12卷 / 38期

关键词：

D O I：

10.1142/S0217732397003125

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this letter we provide a simple explanation of the recent finding of anisotropy in electromagnetic (EM) propagation claimed by Nodland and Ralston. We consider, as a possible origin of such effect, the effective coupling between EM fields and some tiny background torsion field. The coupling is obtained after integrating out charged fermions, it is gauge-invariant and does not require the introduction of any new physics.

引用

页码：3003 / 3007

页数：5

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