Abstract
An analysis [McCall, M.W. J. Mod. Opt. 2007, 54, 119-128] based on the electromagnetic energy-momentum tensor, to explore the prospects for negative-phase-velocity (NPV) propagation in gravitationally affected vacuum, did not consider (i) the total energy-momentum tensor and (ii) the global perspective of curved spacetime. Also, the appearance of NPV was wrongly attributed to a change in signature of the spacetime metric.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 323-328 |
| Number of pages | 6 |
| Journal | Journal of Modern Optics |
| Volume | 55 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 2008 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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