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

作　　者：Zhican Du Xueda Wen Yu Zhou Guozhu Sun Jian Chen Peiheng Wu 

机构地区：[1]Research Institute of Superconductor Electronics,School of Electronic Science and Engineering,Nanjing University [2]Department of Physics,University of Illinois at Urbana-Champaign,Urbana,IL 61801,USA

出　　处：《Chinese Science Bulletin》2014年第29期3835-3840,共6页

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.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.

关 键 词：耦合机制 两级系统 量子位 频谱 相位 超导 微观 实验测量 

分 类 号：O413[理学—理论物理]