qm-error-detection-and-correction

• This code uses syndrome measurements and makes only two passes to detect errors and correct them.
• The code contains a single Bell pair as the code qubits and a single link bit.
• The errors(identity, X, Z) are introduced in the circuit for each of the two code qubits, thus producing a total of 9 combinations(II, IX, IZ, XI, XX, XZ, ZI, ZX, ZZ)
• The code considers all the 9 combinations and performs correction in each of the cases, if needed.
• The code is also scalable, i.e. it can be extended to more number of code bits.