A controllable superconducting electromechanical oscillator with a suspended membrane

We fabricate a microscale electromechanical system, in which a suspended superconducting membrane, treated as a mechanical oscillator, capacitively couples to a superconducting microwave resonator. As the microwave driving power increases, nonmonotonic dependence of the resonance frequency of the me...

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Bibliographic Details
Published in:arXiv.org 2019-02
Main Authors: Yong-Chao, Li, Jiang-shan, Tang, Jun-Liang, Jiang, Jia-Zheng, Pan, Dai, Xin, Xing-Yu, Wei, Ya-Peng, Lu, Lu, Sheng, Xue-Cou Tu, Hua-bing, Wang, Ke-yu, Xia, Guo-Zhu, Sun, Pei-Heng, Wu
Format: Article
Language:English
Subjects:
Dependence
Hybrid systems
Mechanical oscillators
Optical switching
Stability
Superconductivity
Online Access:Get full text
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Summary:We fabricate a microscale electromechanical system, in which a suspended superconducting membrane, treated as a mechanical oscillator, capacitively couples to a superconducting microwave resonator. As the microwave driving power increases, nonmonotonic dependence of the resonance frequency of the mechanical oscillator on the driving power has been observed. We also demonstrate the optical switching of the resonance frequency of the mechanical oscillator. Theoretical models for qualitative understanding of our experimental observations are presented. Our experiment may pave the way for the application of a mechanical oscillator with its resonance frequency controlled by the electromagnetic and/or optical fields, such as a microwave-optical interface and a controllable element in a superqubit-mechanical oscillator hybrid system.
ISSN:2331-8422
DOI:10.48550/arxiv.1902.10956