摘要
从反常色散下电磁场相速、群速经典理论出发,研究了WKD(Wang,Kuzmich,Dogariu)超光速实验的理论基础,分析了采用增益辅助线性反常色散来观测超光速传播的实验原理。指出了实验中存在的因果矛盾缘于超前场的存在或信号前驱噪音被放大,并给出了实验验证的方法。
Departing from classical theory of the electromagnetic phase velocity and group velocity under anomalous dispersion,we have researched the theoretical basis of WKD superluminal experiment,and analysed the experiment principle to observe superluminal propagation through using gain auxiliary linear anomalous dispersion. It pointed out that the causal contradictions in this experiment is due to the existence of super offensive or the amplified precursory noise signals. And the method of experimental verification is given.
出处
《激光杂志》
北大核心
2015年第3期18-20,共3页
Laser Journal
基金
四川省教育厅重点项目(14ZA0246)
内江师范学院科研项目(14ZB08)
关键词
反常色散
群速
超光速
超前场
前驱噪音
Anomalous Dispersion
Group Velocity
Superluminal
Ahead Field
Precursory Noise
