Abstract
The propagation of electromagnetic plane waves with negative phase velocity (NPV) in the ergosphere of a rotating black hole has recently been reported. A comparison of NPV propagation and superradiance is presented. We show that, although both phenomenons involve negative energy densities, there are two significant differences between them.
Original language | English (US) |
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Pages (from-to) | 15-21 |
Number of pages | 7 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 341 |
Issue number | 1-4 |
DOIs | |
State | Published - Jun 20 2005 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy