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Electromagnetic waves with negative phase velocity in Schwarzschild-de Sitter spacetime

Tom G. Mackay·Akhlesh Lakhtakia·Sandi Setiawan
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Abstract

The propagation of electromagnetic plane waves with negative phase velocity (NPV) is considered in Schwarzschild-(anti-)de Sitter spacetime. It is demonstrated that NPV propagation occurs in Schwarzschild-de Sitter spacetime at lower values of the cosmological constant than is the case for de Sitter spacetime. Furthermore, we report that neither is NPV propagation observed in Schwarzschild-anti-de Sitter spacetime, nor is it possible outside the event horizon of a Schwarzschild blackhole.

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Tom G. Mackay, Akhlesh Lakhtakia, Sandi Setiawan. 2005-08-23. Electromagnetic waves with negative phase velocity in Schwarzschild-de Sitter spacetime. https://doi.org/10.1209/epl%2Fi2005-10164-5

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