TESTING THE WEAK EQUIVALENCE PRINCIPLE WITH THE COSMIC MICROWAVE BACKGROUND SPECTRUM

被引：0
|
作者：
MAGUEIJO, JCR
机构：
[1] Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge
来源：
PHYSICS LETTERS B | 1993年 / 305卷 / 03期
关键词：
D O I：
10.1016/0370-2693(93)90108-T
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the Sachs-Wolfe effect in a wide class of nonmetric theories of gravitation. It is found that in these theories an initially thermal photon energy spectrum would not remain thermal. The recent measurements of the cosmic microwave background radiation spectrum can therefore be used to constrain nonmetric gravitational couplings to electromagnetism. These constraints can be interpreted as a precise verification of the weak equivalence principle as applied to photons.
引用
收藏
页码：202 / 207
页数：6
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