Quantum Multiparty Communication Protocols with Qubits and Qutrits

by Mohamed Bourennane (SU Fysikum)

Thursday 18 Apr 2013, 10:00 → 11:00 Europe/Stockholm

FA31

We present simple and practical quantum solution for multiparty communication protocols, the secret sharing, the communication complexity, and Byzantine agreement and their experimental realizations. In the secret sharing protocol, a secret is split among several parties in a way that its reconstruction requires the collaboration of the participating parties. In the communication complexity problem, the goal is to maximize the success probability of the partners for solving communication complexity tasks for giving communication resources. The Byzantine Agreement protocol is a protocol in distributed computing. In contrast with recently proposed schemes involving multiparticle GHZ states, our quantum solution is based on sequential operations on a single qubit and single qutrit.