Nous étudions divers aspects de la théorie de l'information quantique, tels la communication quantique, la cryptographie quantique, la non-localité quantique, les algorithmes quantiques, la mesure quantique, l'aléa quantique, le clonage quantique, les fondements de la mécanique quantique. Récemment nous avons montré comment certifier que des protocoles quantiques fonctionnent correctement grâce à la non localité quantique. [We study different aspects of the theory of quantum information, such as quantum communication and quantum cryptography, quantum non locality, quantum algorithms, quantum measurements, quantum randomness, quantum cloning, and the foundations of quantum mechanics. Recently we introduced the notion of device independent information processing, in which the correct operation of a quantum protocol is certified by quantum non locality.]