Spectrum of a superconducting phase qubit coupled to a microscopic two-level system

被引：2

作者：

Du, Zhican ^{[1
]}

Wen, Xueda ^{[2
]}

Zhou, Yu ^{[1
]}

Sun, Guozhu ^{[1
]}

Chen, Jian ^{[1
]}

Wu, Peiheng ^{[1
]}

机构：

[1] Nanjing Univ, Sch Elect Sci & Engn, Res Inst Superconductor Elect, Nanjing 210093, Jiangsu, Peoples R China

[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

CHINESE SCIENCE BULLETIN | 2014年 / 59卷 / 29-30期

关键词：

Superconducting qubit; Microscopic two-level system; Coupled system; Spectrum;

D O I：

10.1007/s11434-014-0525-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We measured experimentally the spectrum of a superconducting phase qubit. An avoided energy-level crossing is obviously observed, which is due to the coupling to a microscopic two-level system. With different theoretical methods, we simulated the spectrum, from which we can obtain the coupled system's parameters and the coupling mechanism.

引用

页码：3835 / 3840

页数：6

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