2013/10/31 by Giuseppe Vallone, Alberto Dall'Arche, Alberto DallʼArche +2
Computer Science · Physics and Astronomy · #Bipartite graph #Key (lock) #Protocol (science) #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum key distribution #Realization (probability) #State (computer science) #Topology (electrical circuits) #W state #quant-ph
paper · pdf · doi:10.1088/1367-2630/16/6/063064
published as New J. Phys. 16, 063064 (2014) · 8 pages, 4 figure + appendix
arxiv created 2014/04/28 · openalex publication_date 2014/06/26 · arxiv updated 2014/09/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We here present the rate analysis and a proof of principle demonstration of a device-independent quantum key distribution protocol requiring the lowest detection efficiency necessary to achieve a secure key compared to device-independent protocols known so far. The protocol is based on a non-maximally entangled state and its experimental demonstration has been performed by two-photon bipartite entangled states. The improvement with respect to protocols involving maximally entangled states has been estimated.