Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
to 30–40 qubits using ideal simulators NISQ vs. fault-tolerant and near-perfect, small-scale, and large-scale NSSQ — Noisy Small-Scale Quantum devices NISQ — Noisy Intermediate-Scale Quantum devices NLSQ — Noisy Large-Scale Quantum devices NPSSQ — Near-Perfect Small-Scale Quantum devices NPISQ —