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    嵇英华

    Influences of an external pulse on the quantum state of a mesoscopic RLC circuit

    Ji Ying-Hua
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    • 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.
      In this paper, the influences of an external pulse on the variation of the quantum state of a mesoscopic RLC circuit are investigated emphatically. Our research result indicates that the transition probabilities of the variation of the quantum state are adjusted by controlling the variation of the pulse parameters when the parameters of the mesoscopic circuit are constant. We point out that the quantum state of a system is stable when the width of the pulse is equal to the integral times of the minimum fixed value. The minimum fixed value is not related to the altitude of pulse but the circuit parameters. The larger the resistance, the wider the minimum fixed width of the external pulse.
        • 基金项目:江西省自然科学基金(批准号:0212018)资助的课题.
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      出版历程
      • 收稿日期:2002-02-27
      • 修回日期:2002-06-30
      • 刊出日期:2005-04-03

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