利用棘轮效应检测微小机械运动
Detection of Tiny Mechanical Motion by Means of the Ratchet Effect
摘要：
提出了一种基于棘轮效应的纳机电谐振器位置检测方案。该方案具有直流测量的优点。我们考虑一个三结SQUID的超导回路的一部分，可以执行机械运动。棘轮对直流电流的响应对谐振器的位置敏感，并且可以通过用交流电流偏置SQUID来进一步增强这种效果。我们讨论了在现有的实验装置所提出的方案的可行性。
英文摘要：
We propose a position detection scheme for a nanoelectromechanical resonator based on the ratchet effect. This scheme has an advantage of being a dc measurement. We consider a three-junction SQUID where a part of the superconducting loop can perform mechanical motion. The response of the ratchet to a dc current is sensitive to the position of the resonator and the effect can be further enhanced by biasing the SQUID with an ac current. We discuss the feasibility of the proposed scheme in existing experimental setups.
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。
