Quantum error correction

Topic

Quantum error correction (QEC) comprises a set of techniques used in quantum memory and quantum computing to protect quantum information from errors arising from decoherence and other sources of quantum noise. It is essential for achieving fault-tolerant quantum computing by encoding logical quantum states into larger systems of physical qubits. Common approaches include stabilizer codes, such as the Shor code and surface codes, which detect and correct errors without destroying the underlying quantum information.