首页|Tunable superconducting resonators via on-chip control of local magnetic field

Tunable superconducting resonators via on-chip control of local magnetic field

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Superconducting microwave resonators play a pivotal role in superconducting quantum circuits.The ability to fine-tune their resonant frequencies provides enhanced control and flexibility.Here,we introduce a frequency-tunable super-conducting coplanar waveguide resonator.By applying electrical currents through specifically designed ground wires,we achieve the generation and control of a localized magnetic field on the central line of the resonator,enabling continuous tuning of its resonant frequency.We demonstrate a frequency tuning range of 54.85 MHz in a 6.21-GHz resonator.This integrated and tunable resonator holds great potential as a dynamically tunable filter and as a key component of communi-cation buses and memory elements in superconducting quantum computing.

superconducting resonatorNbNkinetic inductancetunable resonator

王晨光、岳文诚、涂学凑、迟天圆、郭婷婷、吕阳阳、董思宁、曹春海、张蜡宝、贾小氢、孙国柱、康琳、陈健、王永磊、王华兵、吴培亨

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Research Institute of Superconductor Electronics,School of Electronic Science and Engineering,Nanjing University,Nanjing 210023,China

Purple Mountain Laboratories,Nanjing 211111,China

National Key Laboratory of Spintronics,Nanjing University,Suzhou 215163,China

Hefei National Laboratory,Hefei 230094,China

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国家重点研发计划国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金Excellent Young Scholar Program of Jiangsu Province,ChinaExcellent Young Scholar Program of Jiangsu Province,ChinaOutstanding Postdoctoral Program of Jiangsu Province,China中央高校基本科研业务费专项Fund from Jiangsu Key Laboratory of Advanced Techniques for Manipulating Electromagnetic Waves

2021YFA07188022018YFA02090026227408662288101619714646210124311961141002BK20200008BK20200060

2024

10.1088/1674-1056/ad2f21

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
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