spontaneous emission

• 自发发射

spontaneous emission的用法和样例：

例句

1. Spontaneous photons initiate stimulated emission and the chain reaction begins.
   自发发射的光子引起受激发射，开始了链式反应。
2. Spontaneous emission can be modified through controlling the Rabi frequency of the driving field.
   通过改变驱动场的拉比频率可以达到控制原子自发发射的目的。