Experimental realization of nonadiabatic geometric gates with a superconducting Xmon qubit

no code implementations • 22 Sep 2019 • P. Z. Zhao, Zhangjingzi Dong, Zhenxing Zhang, Guoping Guo, D. M. Tong, Yi Yin

Based on different geometric phases, various quantum gates have been proposed, such as nonadiabatic geometric gates based on nonadiabatic Abelian geometric phases and nonadiabatic holonomic gates based on nonadiabatic non-Abelian geometric phases.

Quantum Physics Superconductivity

Random walk on the Bloch sphere realized by a simultaneous feedback and feed-forward control in a superconducting Xmon qubit system

no code implementations • 22 Sep 2019 • Liang Xiang, Zhiwen Zong, Zhenhai Sun, Ze Zhan, Ying Fei, Zhangjingzi Dong, Chongxin Run, Zhilong Jia, Peng Duan, Jianlan Wu, Yi Yin, Guoping Guo

Our experiment provides a conceptually simple and intuitive benchmark for the feedback control in a multi-qubit system.

Quantum Physics Superconductivity