A quantum key distribution scheme based on tripartite entanglement and violation of CHSH inequality
Quantum Physics
2020-04-07 v1
Abstract
Entanglement is a well-known resource in quantum information, in particular it can be exploited for quantum key distribution (QKD). In this paper we define a two-way QKD scheme employing GHZ-type states of three qubits obtaining an extension of the standard E91 protocol with a significant increasing of the number of shared bits. Eavesdropping attacks can be detected measuring violation of the CHSH inequality and the secret key rate can be estimated in a device-independent scenario.
Keywords
Cite
@article{arxiv.1707.06645,
title = {A quantum key distribution scheme based on tripartite entanglement and violation of CHSH inequality},
author = {Davide Pastorello},
journal= {arXiv preprint arXiv:1707.06645},
year = {2020}
}
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13 pages