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arXiv 0801.1432cond-mat.mes-hall
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光激励相干导体的噪声敏感度

The Noise Susceptibility of a Photo-excited Coherent Conductor

Julien Gabelli, Bertrand Reulet

摘要:

本文报道光激发导体的\emph{dynamical response of current fluctuations}理论。我们已经进行了计算的相干导体所描述的任意能量依赖的传输和任意频率。我们考虑两个实验设置,对应于不同的方式对称化当前运营商,导致不同的预测。我们的结果是在非常好的,定量协议与最近的测量。我们证明,我们已经计算的噪声的动力学响应的关键概念,涉及动态库仑阻塞,即电子-电子校正的电导由于存在的外部阻抗,量子噪声。

英文摘要:

We report the theory of the \emph{dynamical response of current fluctuations} of a photo-excited conductor. We have performed the calculation for a coherent conductor described by arbitrary energy-dependent transmissions and for arbitrary frequencies. We consider two experimental setups that correspond to different ways of symmetrizing the current operators, leading to different predictions. Our results are in very good, quantitative agreement with a recent measurement. We demonstrate that the dynamical response of noise that we have calculated is the key concept that relates Dynamical Coulomb Blockade, i.e. the electron-electron correction to the conductance due to the presence of an external impedance, to quantum noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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