论文标题
由表面声波驱动的飞行电子的相干光束分裂
Coherent beam splitting of flying electrons driven by a surface acoustic wave
论文作者
论文摘要
我们为通过表面声波（锯）通过两条隧道耦合量子线驱动的单电子开发了一个相干的束分离器。通过每根电线的输出电流用栅极电压振荡，以调整隧道耦合和电线之间的电势差。该振荡分配给了一致的电子隧穿运动，该运动可用于编码飞行量子标码，并通过数值计算锯驱动的单电子的数值计算来很好地再现。目前，振荡的可见性限制在约3％，但反对腐蚀性强大，这表明锯纸电子可以用作固态飞行量子的新型平台。
We develop a coherent beam splitter for single electrons driven through two tunnel-coupled quantum wires by surface acoustic waves (SAWs). The output current through each wire oscillates with gate voltages to tune the tunnel-coupling and potential difference between the wires. This oscillation is assigned to coherent electron tunneling motion that can be used to encode a flying qubit and is well reproduced by numerical calculations of time evolution of the SAW-driven single electrons. The oscillation visibility is currently limited to about 3%, but robust against decoherence, indicating that the SAW-electron can serve as a novel platform for a solid-state flying qubit.
