ZZ Freedom in Two-Qubit Gates

Xu, XX; Ansari, MH

Xu, XX (corresponding author), Rhein Westfal TH Aachen, Inst Quantum Informat, D-52056 Aachen, Germany.; Xu, XX (corresponding author), Forschungszentrum Julich, Peter Grunberg Inst, D-52428 Julich, Germany.; Xu, XX (corresponding author), Julich Aachen Res Alliance JARA, Fundamentals Future Informat Technol, D-52428 Julich, Germany.

PHYSICAL REVIEW APPLIED, 2021; 15 (6):

Abstract

Superconducting qubits on a circuit exhibit an always-on state-dependent phase error. This error is due to sub-MHz parasitic interaction that repels c......

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