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arXiv 0802.4442cond-mat.mes-hall
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高频极限的机械反馈

Mechanical feedback in the high-frequency limit

R. El Boubsi, O. Usmani, Ya. M. Blanter

摘要:

我们研究了在高频情况下,当谐振子的机械能超过隧穿速率时,耦合到欠阻尼谐振子的单电子隧穿器件的强机械反馈,以及弱耦合的强机械反馈.在强反馈状态下,由SET的电报信号振荡的机械振荡反过来修改电流。与较早的低频结果相反,电流噪声在泊松值以上没有增强。

英文摘要:

We investigate strong mechanical feedback for the single-electron tunneling device coupled to an underdamped harmonic oscillator in the high-frequency case, when the mechanical energy of the oscillator exceeds the tunnel rate, and for weak coupling. In the strong feedback regime, the mechanical oscillations oscillated by the telegraph signal from the SET in their turn modify the electric current. In contrast to the earlier results for the low frequencies, the current noise in not enhanced above the Poisson value.

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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