wave packet

基本解释

As the optical precursor and main wave packet traveled through a second group of rubidium atoms, the scientists took measurements on the speed of the two photon components.
随着光前驱和主波包通过第二组铷原子，科学家就可以对这两个光子成分的速度进行测量。
The atoms had an effect called electromagnetically induced transparency (EIT), which enabled the scientists to separate the single-photon precursors from the main wave packet.
这些铷原子可以产生一种称为“电磁感应光透明”（EIT）的效应，可以帮助科学家从主波包中分离出单个光子前驱。
But this study is the first to experimentally show that optical precursors exist at the single-photon level, and that they are the fastest part of the single-photon wave packet.
而这次的研究则是第一次用实验证明，在单个光子层次上也存在着光前驱，而且它们也是单个光子的波包中最快的部分。

波包
In special and temporal changes of the meridional gradients with the barotropic components of zonal flow and potential temperature play an important role in development of the disturbance wave packet.
同时，对称斜压波包的发展与否取决于纬向流和位温的正压分量的南北梯度时空变化。
物理学
波包
波束