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arXiv 1612.03250quant-ph
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电路元件内部的电子零点波动力

Electronic zero-point fluctuation forces inside circuit components

Ephraim Shahmoon, Ulf Leonhardt

摘要:

量子零点涨落最有趣的表现之一是范德华力和卡西米尔力,通常与电磁场的真空涨落有关。在这里,我们研究广义波动电位作用于内部自由度的元件在电路中。这些电子类卡西米尔电位由任何一般导电电路的零点电流波动引起。对于机电电容器和超导量子比特的实际例子,我们的结果分别揭示了电容器板之间的可调力或量子比特的能级位移的可能性。我们的分析提出了另一种途径对卡西米尔的波动电位的探索,即通过表征和测量它们作为环境参数的函数。这种可调电位可能对未来的纳米机电和量子技术有用。

英文摘要:

One of the most intriguing manifestations of quantum zero-point fluctuations are the van der Waals and Casimir forces, often associated with vacuum fluctuations of the electromagnetic field. Here we study generalized fluctuation potentials acting on internal degrees of freedom of components in electrical circuits. These electronic Casimir-like potentials are induced by the zero-point current fluctuations of any general conductive circuit. For realistic examples of an electromechanical capacitor and a superconducting qubit, our results reveal the possibility of tunable forces between the capacitor plates, or the level shifts of the qubit, respectively. Our analysis suggests an alternative route towards the exploration of Casimir-like fluctuation potentials, namely, by characterizing and measuring them as a function of parameters of the environment. Such tunable potentials may be useful for future nanoelectromechanical and quantum technologies.

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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