Superconducting quantum bits<xref rid="cpb_27_2_027401fn1" ref-type="fn">*</xref> <fn id="cpb_27_2_027401fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 91321208 and 11674380) and the National Key Basic Research Program of the Ministry of Science and Technology of China (Grant Nos. 2014CB921202, 2015CB921104, and 2016YFA0300601).</p> </fn>

Superconducting quantum bits* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 91321208 and 11674380) and the National Key Basic Research Program of the Ministry of Science and Technology of China (Grant Nos. 2014CB921202, 2015CB921104, and 2016YFA0300601).

Liu Wei-Yang^{1, 2}, Zheng Dong-Ning^{1, 2}, Zhao Shi-Ping^{1, 2, †}

(color online) (a), (b) Microscope images of a persistent-current qubit. The horizontal λ/2 CPW resonator at the bottom in panel (a) couples to the qubit for the qubit state measurement. Figure reproduced with permission from Ref. [45].