Pulse sequences for suppressing leakage in single-qubit gate operations
Pulse sequences for suppressing leakage in single-qubit gate operations
Many realizations of solid-state qubits involve couplings to leakage states lying outside the computational subspace, posing a threat to high-fidelity quantum gate operations. Mitigating leakage errors is especially challenging when the coupling strength is unknown, e.g., when it is caused by noise. Here we show that simple pulse sequences can …