研究了外加脉冲信号对介观RLC电路量子态变化的影响 .结果表明 :当电路参数一定时 ,通过控制脉冲信号参数的变化可以调节介观电路量子态变化的跃迁概率 ;而当脉冲信号宽度是某个最小量的整数倍时 ,系统的量子态保持不变 .最小量的值与电路参数有关 ,但与脉冲信号幅度无关 .电阻越大 ,保持系统量子态稳定的脉冲信号最小宽度则越宽 The influence of external impulse signal on the quantum state of mesoscopic RLC circuit is investigated. The results show that when the circuit parameters are constant, the transition probability of the mesoscopic circuit quantum state can be adjusted by controlling the variation of the pulse signal parameters. When the impulse signal width The quantum state of the system remains unchanged, the minimum value is related to the circuit parameters, but has nothing to do with the amplitude of the pulse signal, the larger the resistance is, the smaller the minimum width of the pulse signal that keeps the quantum state of the system stable width