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arXiv · 1707.06645

A quantum key distribution scheme based on tripartite entanglement and violation of CHSH inequality

Davide Pastorello
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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.

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Davide Pastorello. 2017-07-20. A quantum key distribution scheme based on tripartite entanglement and violation of CHSH inequality. https://arxiv.org/abs/1707.06645

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