Content area

Abstract

Abstract.

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.

Details

Title
Negative phase velocity of electromagnetic waves and the cosmological constant
Author
Mackay, T G 1 ; Setiawan, S 1 ; Lakhtakia, A 2 

1  University of Edinburgh, School of Mathematics, Edinburgh, UK 
2  Department of Engineering Science and Mechanics, Pennsylvania State University, PA 16802-6812, USA 
Pages
1-4
Publication year
2005
Publication date
Jul 2005
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1140/epjcd/s2005-01-001-9
ProQuest document ID
2334215430
Copyright
The European Physical Journal C - Particles and Fields is a copyright of Springer, (2005). All Rights Reserved.