Purity benchmarking study of error coherence in a single Xmon qubit

Auda Zhu, Jérémy H. Béjanin, Xicheng Xu +1

In this study, we employ purity benchmarking (PB) to explore the dynamics of gate noise in a superconducting qubit system. Over 1110 hours of observations on an Xmon qubit, we simu…