par Acín, Antonio;Brunner, Nicolas;Gisin, Nicolas;Massar, Serge ;Pironio, Stefano ;Scarani, Valerio
Référence Physical Review Letters, 98, 23, 230501
Publication Publié, 2007
Référence Physical Review Letters, 98, 23, 230501
Publication Publié, 2007
Article révisé par les pairs
Résumé : | We present the optimal collective attack on a quantum key distribution protocol in the "device-independent" security scenario, where no assumptions are made about the way the quantum key distribution devices work or on what quantum system they operate. Our main result is a tight bound on the Holevo information between one of the authorized parties and the eavesdropper, as a function of the amount of violation of a Bell-type inequality. |