Impact of Spectators on a Two-Qubit Gate in a Tunable Coupling Superconducting Circuit
Impact of Spectators on a Two-Qubit Gate in a Tunable Coupling Superconducting Circuit
Cross-resonance (CR) gates have emerged as a promising scheme for fault-tolerant quantum computation with fixed-frequency qubits. We experimentally implement an entangling CR gate by using a microwave-only control in a tunable coupling superconducting circuit, where the tunable coupler provides extra degrees of freedom to verify optimal conditions for constructing a …