As the optical precursor and main wavepacket 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。
2
We are sure that the main wavepacket cannot travel faster than the precursor, which travels at c.
我们确定，主波包传播的速度不能超越以光速c传播的前驱。
3
"One of the ways that we encode digital information is by its phase," Huntington said, "so what we've done is created a wavepacket that's simultaneously a one and a zero in its phase."