Codes Convolutifs et Partage de Secret Quantiques
Aziz Mouzali · HAL (Le Centre pour la Communication Scientifique Directe) · 2013
Quantum information is a synthesis between information theory and quantum mechanics. It offers opportunities that do not exist in the classical case thanks to certain properties of information carriers (qubits) which are governed by quantum mechanics. Among these properties, state superposition and entanglement that allow parallel computing and certain quantum protocols such as teleportation. One of the difficulties of quantum information is the extreme sensitivity of qubits to the external environment which disturbs their state by introducing errors into the transmitted information. In order to counter this phenomenon called decoherence, quantum error correcting codes have been developed. We will focus in this work on quantum convolutional codes intended for the protection of continuous flows of information transmitted over long distances. A second part will be devoted to a particular quantum communication protocol which is secret sharing using five qubits transmitted by noisy channels and protected by three error-correcting codes.