Electromagnetic negative-phase-velocity propagation in the ergosphere of a rotating black hole

Tom G. Mackay, Akhlesh Lakhtakia, Sandi Setiawan

Research output: Contribution to journalReview article

31 Citations (Scopus)

Abstract

We report on the occurrence of negative-phase-velocity (NPV) planewave propagation in the ergosphere of a rotating black hole. By implementing the Kerr metric, it is demonstrated that regions of NPV propagation are concentrated at the equator of the ergosphere, while NPV propagation is less common towards the polar regions. Increasing the angular velocity of the black hole exaggerates the NPV concentration at the equator. NPV propagation is not observed outside the stationary limit surface.

Original languageEnglish (US)
Article number171
JournalNew Journal of Physics
Volume7
DOIs
StatePublished - Aug 18 2005

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phase velocity
electromagnetism
propagation
equators
angular velocity
polar regions
occurrences

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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title = "Electromagnetic negative-phase-velocity propagation in the ergosphere of a rotating black hole",
abstract = "We report on the occurrence of negative-phase-velocity (NPV) planewave propagation in the ergosphere of a rotating black hole. By implementing the Kerr metric, it is demonstrated that regions of NPV propagation are concentrated at the equator of the ergosphere, while NPV propagation is less common towards the polar regions. Increasing the angular velocity of the black hole exaggerates the NPV concentration at the equator. NPV propagation is not observed outside the stationary limit surface.",
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Electromagnetic negative-phase-velocity propagation in the ergosphere of a rotating black hole. / Mackay, Tom G.; Lakhtakia, Akhlesh; Setiawan, Sandi.

In: New Journal of Physics, Vol. 7, 171, 18.08.2005.

Research output: Contribution to journalReview article

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AU - Lakhtakia, Akhlesh

AU - Setiawan, Sandi

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N2 - We report on the occurrence of negative-phase-velocity (NPV) planewave propagation in the ergosphere of a rotating black hole. By implementing the Kerr metric, it is demonstrated that regions of NPV propagation are concentrated at the equator of the ergosphere, while NPV propagation is less common towards the polar regions. Increasing the angular velocity of the black hole exaggerates the NPV concentration at the equator. NPV propagation is not observed outside the stationary limit surface.

AB - We report on the occurrence of negative-phase-velocity (NPV) planewave propagation in the ergosphere of a rotating black hole. By implementing the Kerr metric, it is demonstrated that regions of NPV propagation are concentrated at the equator of the ergosphere, while NPV propagation is less common towards the polar regions. Increasing the angular velocity of the black hole exaggerates the NPV concentration at the equator. NPV propagation is not observed outside the stationary limit surface.

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JO - New Journal of Physics

JF - New Journal of Physics

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