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arXiv 2211.04074cond-mat.mes-hallquant-ph
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电子隧穿诱导的长时间持续振荡的稳定性

Stability of long-sustained oscillations induced by electron tunneling

Jorge Tabanera-Bravo, Florian Vigneau, Juliette Monsel, Kushagra Aggarwal, Léa Bresque, Federico Fedele, Federico Cerisola, G. A. D. Briggs, Janet Anders, Alexi… 展开作者

Jorge Tabanera-Bravo, Florian Vigneau, Juliette Monsel, Kushagra Aggarwal, Léa Bresque, Federico Fedele, Federico Cerisola, G. A. D. Briggs, Janet Anders, Alexia Aufèves, Juan M. R. Parrondo, Natalia Ares

AI总结:

研究量子器件中单电子动力学与机械运动相互作用引发的自振荡,发现其具有突发、消失及双稳态滞后行为,并在单双量子点配置中证实特定振荡可稳定持续20秒以上,揭示了机制的鲁棒性。

摘要:

自振荡是恒定功率源产生周期运动的高效机制结果。在量子器件中,这些振荡可能源于单电子动力学与机械运动的相互作用。我们表明,由于该机制的复杂性,这些自振荡可能突发、消失,或表现出导致滞后回线的双稳态行为。我们观察了这些滞后回线,并表征了单和双量子点配置中不同状态的稳定性。在特定情况下,我们发现这些振荡稳定超过20秒,比电子和机械特征时间尺度高出多个数量级,揭示了该机制的鲁棒性。

英文摘要:

Self-oscillations are the result of an efficient mechanism generating periodic motion from a constant power source. In quantum devices, these oscillations may arise due to the interaction between single electron dynamics and mechanical motion. We show that, due to the complexity of this mechanism, these self-oscillations may irrupt, vanish, or exhibit a bistable behaviour causing hysteresis cycles. We observe these hysteresis cycles and characterize the stability of different regimes in both single and double quantum dot configurations. In particular cases, we find these oscillations stable for over 20 seconds, many orders of magnitude above electronic and mechanical characteristic timescales, revealing the robustness of the mechanism at play.

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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