Negative phase velocity of electromagnetic waves and the cosmological constant

被引：0
|
作者：
T. G. Mackay
S. Setiawan
A. Lakhtakia
机构：
[1] School of Mathematics,University of Edinburgh
[2] Pennsylvania State University,Department of Engineering Science and Mechanics
来源：
The European Physical Journal C - Particles and Fields | 2005年 / 41卷
关键词：
Field Theory; Elementary Particle; Quantum Field Theory; Plane Wave; Electromagnetic Wave;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Examining the propagation of electromagnetic plane waves with the wavevector directed in opposition to the time-averaged Poynting vector in cosmological spacetime with piecewise uniform metric, we show that such negative-phase-velocity (NPV) propagation is possible in certain de Sitter spacetimes but not in anti-de Sitter spacetimes. This difference suggests the possibility of an optical/electromagnetic experiment to discern the cosmological constant of a four-dimensional universe stemming from a five-dimensional brane universe.
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页码：1 / 4
页数：3
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