High-fidelity entangling gates for quantum-dot hybrid qubits based on exchange interactions
High-fidelity entangling gates for quantum-dot hybrid qubits based on exchange interactions
Quantum dot hybrid qubits exploit an extended charge-noise sweet spot that suppresses dephasing and has enabled the experimental achievement of high-fidelity single-qubit gates. However, current proposals for two-qubit gates require tuning the qubits away from their sweet spots. Here, we propose a two-hybrid-qubit coupling scheme, based on exchange interactions, that …