中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A trilayer process for the fabrication of Al phase qubits

文献类型:期刊论文

作者Xue, GM ; Yu, HF ; Tian, Y ; Deng, H ; Liu, WY ; Ren, YF ; Yu, HW ; Zheng, DN ; Zhao, SP
刊名SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期2013
卷号56期号:12页码:2377
关键词Josephson junction trilayer process superconducting qubit
ISSN号1674-7348
通讯作者Zhao, SP (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要Herein we develop an Al/AlOx/Al trilayer process, feasible to fabricate complex circuits with wiring crossovers, for the preparation of Al junctions and phase qubits. The AlOx layer is obtained by in situ thermal oxidation, which provides high-quality junction tunnel barriers. The Al junctions show a considerably low leakage current and the Josephson critical current density can be conveniently controlled in the range of a few to above 100 A/cm(2), which is favorable in the phase qubit application. Macroscopic quantum tunneling, energy spectrum, energy relaxation time, Rabi oscillation, and Ramsey interference of the Al phase qubits are measured, demonstrating clearly quantum coherent dynamics with a timescale of 10 ns. Further improvements of the coherent dynamic properties of the device are discussed.
资助信息National Natural Science Foundation of China [11104340, 11104332]; Ministry of Science and Technology of China [2009CB929102, 2011CBA00106]
语种英语
公开日期2014-01-16
源URL[http://ir.iphy.ac.cn/handle/311004/56751]  
专题物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式
GB/T 7714
Xue, GM,Yu, HF,Tian, Y,et al. A trilayer process for the fabrication of Al phase qubits[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(12):2377.
APA Xue, GM.,Yu, HF.,Tian, Y.,Deng, H.,Liu, WY.,...&Zhao, SP.(2013).A trilayer process for the fabrication of Al phase qubits.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(12),2377.
MLA Xue, GM,et al."A trilayer process for the fabrication of Al phase qubits".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.12(2013):2377.

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来源:物理研究所

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