论文标题

动态单电子晶体管的受控排放时间统计

Controlled emission time statistics of a dynamic single-electron transistor

论文作者

Brange, Fredrik, Schmidt, Adrian, Bayer, Johannes C., Wagner, Timo, Flindt, Christian, Haug, Rolf J.

论文摘要

涉及基于电子干涉仪的量子测量值的量子技术严格依赖于精确的单粒子发射。但是,实现精确的定时操作需要对时域中的单粒子来源进行精美的控制。在这里,我们通过测量发射电子之间的等待时间来证明对动态单电子晶体管的发射时间统计的准确控制。通过提高调制频率,我们可以控制系统从绝热到非绝热动力学,我们通过测量单电子级别的时间波动来可视化,并使用详细理论解释。我们的工作基于以电子,光子或声子的形式控制,传输和检测单个电荷或热量的能力为将来的技术铺平道路。

Quantum technologies involving qubit measurements based on electronic interferometers rely critically on accurate single-particle emission. However, achieving precisely timed operations requires exquisite control of the single-particle sources in the time domain. Here, we demonstrate accurate control of the emission time statistics of a dynamic single-electron transistor by measuring the waiting times between emitted electrons. By ramping up the modulation frequency, we controllably drive the system through a crossover from adiabatic to nonadiabatic dynamics, which we visualize by measuring the temporal fluctuations at the single-electron level and explain using detailed theory. Our work paves the way for future technologies based on the ability to control, transmit, and detect single quanta of charge or heat in the form of electrons, photons, or phonons.

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