Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
the range 99.9% to 99.9999%. NPISQ — Near-Perfect Intermediate-Scale Quantum devices. 50 to a few hundred or so near-perfect qubits — with qubit reliability in the range 99.9% to 99.9999%. NPLSQ — Near-Perfect Large-Scale Quantum devices. More than a few hundred or so to thousands or even millions