Low-Overhead Quantum Bus with Coupling Beyond the Nearest Neighbor via Mediated Effective Capacitance
Low-Overhead Quantum Bus with Coupling Beyond the Nearest Neighbor via Mediated Effective Capacitance
The design of easy-to-operate high-fidelity two-qubit gates remains an area of ongoing research. Many of the common schemes require dedicated control lines, while others are vulnerable to issues of frequency crowding. Here, we propose a scheme for coupling a chain of transmons acting as logical qubits via a quantum bus …