Thorough evaluation of GHZ generation protocols using conference key\n agreement

2018/03/11 by Valentina Caprara Vivoli, Vivoli, Valentina Caprara
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Computing Algorithms and Architecture

paper · pdf · doi:10.48550/arxiv.1803.03930

Abstract

The generation of GHZ states in quantum networks is a key element for the\nrealization of several quantum information tasks. Given the complexity of the\nimplementation of such generation, it is not easy to find an unambigous proof\nfor an optimal protocol. Motivated by recent improvements in NV center\nmanipulation, we present and compare an extensive list of protocols for\ngenerating GHZ states using realistic parameters. Furthermore, in order to\nestablish the goodness of the various protocols, we test them on a specific\napplication, i.e. conference key agreement. We show that for an high number of\nnodes the best protocol is one presented here for the first time.\n

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