Suppression of Qubit Crosstalk in a Tunable Coupling Superconducting Circuit 论文

摘要

No talking! The authors solve the critical scalability issue of multiqubit crosstalk in quantum processors, by harnessing destructive interference. Their architecture involves linking two superconducting qubits with both a bus cavity and a tunable coupler; the tunability enables simultaneous suppression of crosstalk and realization of high-fidelity two-qubit gates. This result paves the way for the next generation of crosstalk-free multiqubit systems.