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). |
(color online) Cavity responses for qubit ground (a) and excited (b) states. Inset: Response at 9.07 GHz versus input power. Figure reproduced with permission from Ref. [ |