Fundamental thresholds for computational and erasure errors via the
coherent information
Fundamental thresholds for computational and erasure errors via the
coherent information
Quantum error correcting (QEC) codes protect quantum information against environmental noise. Computational errors caused by the environment change the quantum state within the qubit subspace, whereas quantum erasures correspond to the loss of qubits at known positions. Correcting either type of error involves different correction mechanisms, which makes studying the …