Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
(6 9’s) qubit reliability. 0.0000001 or 10E-7 or 0.00001% — one in ten million operations fail. 99.99999% (7 9’s) qubit reliability. 0.00000001 or 10E-8 or 0.000001% — one in a hundred million operations fail. 99.999999% (8 9’s) qubit reliability. 0.000000001 or 10E-9 or 0.0000001% — one in a