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Gravitation and Electromagnetic Wave Propagation with Negative Phase Velocity

Tom G. Mackay·Akhlesh Lakhtakia·Sandi Setiawan
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Abstract

Gravitation has interesting consequences for plane wave propagation in a vacuum. The propagation of plane waves with phase velocity directed opposite to the the time-averaged Poynting vector is investigated for a generally curved spacetime. Conditions for such negative-phase-velocity (NPV) propagation are established in terms of the metric components for general and special cases. The negative energy density implications of NPV propagation are discussed.

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Tom G. Mackay, Akhlesh Lakhtakia, Sandi Setiawan. 2005-01-22. Gravitation and Electromagnetic Wave Propagation with Negative Phase Velocity. https://doi.org/10.1088/1367-2630%2F7%2F1%2F075

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