单词group velocity
na.: 【物】波群速度
网络: 三种群速度
【物理学】波群速度
In light of this finding, scientists have wondered whether single photons travel at the group velocity or the signal velocity.
在这些发现的基础上，科学家曾经怀疑，是否单个光子可以达到“群速度”和“信号传播速度”。
Evolution of chirp is simulated by computer and chirp as a function of the fiber loss and group-velocity mismatch is analysed.
利用计算机模拟了啁啾演变过程，并分析了啁啾与光纤损耗系数、群速度失配的关系。
After some thought, however, we realized it was wrong to rely on the beat pattern as an indicator of group velocity.
几经思索之后，我们理解到以拍频图案做为群速度的指标是不正确的。
We have proved the superluminal group velocity is an unstable natural phenomenon by experiment.
用实验证明了群速超光速是一种不稳定的自然现象。
In recent years, researches about the controllable group velocity of light propagation had made many progresses.
最近几年中，慢光和超光速的研究取得了很多进展。
In recent years, researches about the controllable group velocity using difference methods arouse great interest among researchers.
利用不同的技术手段实现光速的调控是最近几年的研究热点问题之一。
The group velocity is the speed at which modulated signals would be transmitted.
群速度就是将调制信号发送出去的速度。
The phase velocity and the group velocity of acoustic waves inside sonic crystals have been analyzed and measured.
系统地研究了声子晶体内部声波传播的相速度和群速度。
The superluminal group velocity has already been observed in optics and electricity fields by some researchers.
群速超光速已经被不同的研究者在光和电的领域发现。
Then the possibility of larger phase velocity and group velocity than light speed in dispersive medium is discussed.
然后从色散介质中相速度与群速度的关系，讨论了相速度和群速度超光速的可能性。