Frequency-tunable transmon in a three-dimensional copper cavity

We have realized a frequency-tunable transmon in a three-dimensional cooper cavity using a direct current supercon- ducting quantum interference device. Both the transition frequency of the transmon and the frequency of the dressed cavity can be varied with the applied external flux bias, which are...

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Published inChinese physics B Vol. 24; no. 11; pp. 81 - 84
Main Author 潘佳政 曹志敏 范云益 周渝 兰栋 刘宇浩 陈志平 李永超 曹春海 许伟伟 康琳 陈健 于海峰 于扬 孙国柱 吴培亨
Format Journal Article
LanguageEnglish
Published 01.11.2015
Subjects
Direct current
Flux
Holes
Mathematical models
Nanostructure
SQUIDs
Superconducting quantum interference devices
Three dimensional
三维
偏置
纳秒
能量弛豫时间
超导量子干涉器件
过渡频率
铜
频率可调
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/24/11/110301

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Summary:We have realized a frequency-tunable transmon in a three-dimensional cooper cavity using a direct current supercon- ducting quantum interference device. Both the transition frequency of the transmon and the frequency of the dressed cavity can be varied with the applied external flux bias, which are well consistent with the theoretical model. The range of the variable transition frequency is from 5.188 GHz to 7.756 GHz. The energy relaxation time of the transmon is hundreds of nanoseconds.
Bibliography:superconducting qubit, three-dimensional transmon, tunable transmon, dc-superconducting quantum interference device
We have realized a frequency-tunable transmon in a three-dimensional cooper cavity using a direct current supercon- ducting quantum interference device. Both the transition frequency of the transmon and the frequency of the dressed cavity can be varied with the applied external flux bias, which are well consistent with the theoretical model. The range of the variable transition frequency is from 5.188 GHz to 7.756 GHz. The energy relaxation time of the transmon is hundreds of nanoseconds.
11-5639/O4
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SourceType-Scholarly Journals-1
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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/11/110301