利萨如式摇动棘轮
Lissajous rocking ratchet
摘要：
在没有净偏置的情况下，打破时间反演对称性（TRS）可以引起定向稳态非平衡输运现象，如棘轮效应。在这里，我们提出，理论和实验，作为一种工具的基础上打破TRS的利萨如摇摆棘轮的概念。我们的系统是一个半导体量子点（QD）与周期性调制的点铅隧道势垒。断裂的TRS产生单电子隧穿电流。它的方向是完全控制通过探索两个势垒调制之间的频率和相位关系。李萨如棘轮的概念可以在各种不同的系统中实现，包括纳米电子，纳米机电或超导电路。它承诺基于射频信号的详细片上比较的应用。
英文摘要：
Breaking time-reversal symmetry (TRS) in the absence of a net bias can give rise to directed steady-state non-equilibrium transport phenomena such as ratchet effects. Here we present, theoretically and experimentally, the concept of a Lissajous rocking ratchet as an instrument based on breaking TRS. Our system is a semiconductor quantum dot (QD) with periodically modulated dot-lead tunnel barriers. Broken TRS gives rise to single electron tunneling current. Its direction is fully controlled by exploring frequency and phase relations between the two barrier modulations. The concept of Lissajous ratchets can be realized in a large variety of different systems, including nano-electrical, nano-electromechanical or superconducting circuits. It promises applications based on a detailed on-chip comparison of radio-frequency signals.
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。
