Controlled quantum teleportation in the presence of an adversary
Sayan Gangopadhyay, Tie-Jun Wang, Atefeh Mashatan, Shohini Ghose
Abstract
We present a device-independent analysis of controlled quantum teleportation where the receiver is not trusted. We show that the notion of genuine tripartite nonlocality allows us to certify control power in such a scenario. By considering a specific adversarial attack strategy on a device characterized by depolarizing noise, we find that control power is a monotonically increasing function of genuine tripartite nonlocality. These results are relevant for building practical quantum communication networks and also shed light on the role of nonlocality in multipartite quantum information processing.
Topics & Concepts
TeleportationQuantum teleportationSuperdense codingQuantum mechanicsPhysicsAdversaryQuantumQuantum nonlocalityQuantum entanglementQuantum channelComputer scienceComputer securityQuantum Information and CryptographyQuantum Mechanics and ApplicationsQuantum Computing Algorithms and Architecture