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在有限温度下 ,介观电路系统实际上并不处在一个确定的量子状态 ,而是处在混合态 .根据正则系综的密度矩阵导出耦合互感电路中电荷和电流的量子涨落 ,得到了量子涨落与温度的依赖关系 .
Under finite temperature, mesoscopic circuit system is not actually in a certain quantum state, but in a mixed state. According to the regular ensemble density matrix, the quantum fluctuation of charge and current in the coupled mutual inductance circuit is derived Quantum fluctuations and temperature dependence.