Security proof of continuous-variable quantum key distribution using three coherent states

Author(s): Kamil Brádler and Christian Weedbrook
We introduce a ternary quantum key distribution (QKD) protocol and asymptotic security proof based on three coherent states and homodyne detection. Previous work had considered the binary case of two coherent states and here we nontrivially extend this to three. Our motivation is to leverage the pra...
[Phys. Rev. A 97, 022310] Published Tue Feb 06, 2018

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