Cavity-mediated cross-cross-resonance gate
This research proposes a new method for creating two-qubit gates in superconducting circuits using a shared cavity as a mediator. The authors developed two error mitigation strategies, 'integers' and 'flowers,' to cancel unwanted dispersive coupling and static ZZ interactions. This framework enables simultaneous gates across multiple qubit pairs via metamaterials, paving the way for scalable quantum operations.