Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds

Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds

Abstract Here we report a breakthrough in the fabrication of a long lifetime transmon qubit. We use tantalum films as the base superconductor. By using a dry etching process, we obtained transmon qubits with a best T 1 lifetime of 503 μs. As a comparison, we also fabricated transmon qubits with othe...

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Bibliographic Details
Main Authors: Chenlu Wang, Xuegang Li, Huikai Xu, Zhiyuan Li, Junhua Wang, Zhen Yang, Zhenyu Mi, Xuehui Liang, Tang Su, Chuhong Yang, Guangyue Wang, Wenyan Wang, Yongchao Li, Mo Chen, Chengyao Li, Kehuan Linghu, Jiaxiu Han, Yingshan Zhang, Yulong Feng, Yu Song, Teng Ma, Jingning Zhang, Ruixia Wang, Peng Zhao, Weiyang Liu, Guangming Xue, Yirong Jin, Haifeng Yu
Format: Article
Language:English
Published: Nature Portfolio 2022-01-01
Series:npj Quantum Information
Online Access:https://doi.org/10.1038/s41534-021-00510-2

Internet

https://doi.org/10.1038/s41534-021-00510-2

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