Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
Quantum devices. 50 to a few hundred or so noisy qubits. NLSQ — Noisy Large-Scale Quantum devices. More than a few hundred or so to thousands or even millions of noisy qubits. NPSSQ — Near-Perfect Small-Scale Quantum devices. Less than 50 or so near-perfect qubits — with qubit reliability in the