Induced current and redefinition of electric and magnetic fields from non-compact Kaluza-Klein theory: An experimental signature of the fifth dimension

被引:9
|
作者
Liko, T [1 ]
机构
[1] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada
关键词
induced-matter theory; free electromagnetic fields; photon propagator;
D O I
10.1016/j.physletb.2005.05.023
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The field equations for gravitation and electromagnetism with sources in four dimensions can be interpreted as arising from the vacuum Einstein equations in five dimensions. Gauge invariance of the electromagnetic potentials leads to a "generalized" electromagnetic field tensor. We use the action principle to derive the equations of motion for free electromagnetic fields in flat spacetime, and isolate an effective electromagnetic current with a source that is purely higher-dimensional in origin. This current provides, at least in principle, a means of detecting extra dimensions experimentally. (c) 2005 Elsevier B.V. All rights reserved.
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页码:193 / 197
页数:5
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