再做一个“快光”实验
One more experiment on "fast-light"
摘要：
对微观测量的时间性质的当代观测和理论研究重新讨论了基本常数，导致光速变化和超光速脉冲传播的可能性。增益辅助实验使用原子气体（一种“快光”介质）中吸收线附近的反常色散，似乎导致波群速度vG超过c（真空光速）;此外，信息速度vi的定义提出了解释三种速度的问题：一种观点是vi = vG，但这违反了因果关系;另一种观点认为，在所有情况下vi = c，但这一点先验地限制了信息的传输。另一种观点认为vi、vG和c是不同的。这种贡献遵循最后一种可能性。给出了关于时空的讨论草稿。
英文摘要：
Contemporary observational and theoretical studies on the temporal nature of microscopic measurements renewed the discussion about the fundamental constants, leading to the possibility of light speed variation and superluminal pulse propagation. Gain assisted experiments using anomalous dispersion near an absorption line in atomic gas, a "fast - light" medium, seem to lead to a wave group velocity vG exceeding c, the vacuum speed of light; moreover, definition of the information velocity vi sets the question of interpretation of the three speeds: one view is that vi = vG, but this violates Causality; another view is that vi = c in all situations, but this limits, a priori, the transport of information. Another view is that vi, vG and c are distinct. This contribution follows the last possibility. A draft discussion on space-time is given.
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。
