Quantum limitations on superluminal propagation
量子物理
2009-10-31 v1 凝聚态物理
广义相对论与量子宇宙学
高能物理 - 理论
摘要
Unstable systems such as media with inverted atomic population have been shown to allow the propagation of analytic wavepackets with group velocity faster than that of light, without violating causality. We illuminate the important role played by unstable modes in this propagation, and show that the quantum fluctuations of these modes, and their unitary time evolution, impose severe restrictions on the observation of superluminal phenomena.
引用
@article{arxiv.quant-ph/9804018,
title = {Quantum limitations on superluminal propagation},
author = {Yakir Aharonov and Benni Reznik and Ady Stern},
journal= {arXiv preprint arXiv:quant-ph/9804018},
year = {2009}
}
备注
RevTeX 4 pages