Remarks on Bessel beams, signals and superluminality
英文摘要：
We address the question about the velocity of signals carried by Bessel beams wave packets propagating in vacuum and having well defined wavefronts in time. We find that this problem is analogous to that of propagation of usual plane wave packets within dispersive media and conclude that the signal velocity can not be superluminal.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
