Corpus ID: 236469033

Ultrastrong tunable coupler between superconducting LC resonators

@inproceedings{Miyanaga2021UltrastrongTC,
  title={Ultrastrong tunable coupler between superconducting LC resonators},
  author={Takafumi Miyanaga and Akiyoshi Tomonaga and H. Ito and Hiroto Mukai and J. S. Tsai},
  year={2021}
}
We investigate the ultrastrong tunable coupler for coupling of superconducting resonators. Obtained coupling constant exceeds 1 GHz, and the wide range tunability is achieved both antiferromagnetics and ferromagnetics from −1086 MHz to 604 MHz. Ultrastrong coupler is composed of rf-SQUID and dc-SQUID as tunable junctions, which connected to resonators via shared aluminum thin film meander lines enabling such a huge coupling constant. The spectrum of the coupler obviously shows the breaking of… Expand

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