Quantum Computing, Quantum Error Correction.
possible outcomes:00, 01, 10 and11. Let’s consider the case where we have a superposition of 00 and 11. If this were to suffer a single bit flip (on either qubit) we’d get a superposition of 01 and 10. How can we tell if this error has occured. The easiest way is to simply look at both qubits. If