Abstract

There have been several experiments which hint at evidence for superluminal transport of electromagnetic energy through a material slab. On the theoretical side, it has appeared evident that acausal signals are indeed possible in quantum electrodynamics. However, it is unlikely that superluminal signals can be understood on the basis of a purely classical electrodynamic signals passing through a material. The classical and quantum theories represent quite different views, and it is the quantum view which may lead to violations of Einstein causality.

Notes

Originally posted at http://arxiv.org/abs/quant-ph/9802069v2. Preprint of an article published in Physics Letters A, v.253, no.3-4, 1999.

Keywords

electromagnetic energy, superluminal signals, quantum physics

Subject Categories

Causality (Physics), Electromagnetic waves

Disciplines

Physics

Publication Date

1999

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