Negative phase velocity of electromagnetic waves and the cosmological constant

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.

References in corpus (2)

• Gravitation and Electromagnetic Wave Propagation with Negative Phase Velocity
• Global and local perspectives of gravitationally assisted negative-phase-velocity propagation of electromagnetic waves in vacuum

Cited by in corpus (6)

• General Relativity in Electrical Engineering
• Towards a metamaterial simulation of a spinning cosmic string
• More studies on Metamaterials Mimicking de Sitter space
• Towards a realization of Schwarzschild-(anti-)de Sitter spacetime as a particulate metamaterial
• Electromagnetic waves with negative phase velocity in Schwarzschild-de Sitter spacetime
• Effect of charge on negative-phase-velocity propagation of electromagnetic waves in the ergosphere of a rotating black hole