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arXiv · 2205.11820

Security against collective attacks for a continuous-variable quantum key distribution protocol using homodyne detection and postselection

Ryo Namiki
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Abstract

We analyze the security against collective attacks for a homodyne-based continuous-variable quantum key distribution protocol using binary coherent states and postselection. We derive a lower bound of the secret key rate in an asymptotic scenario, and numerically optimize it for the case of a symmetric Gaussian channel.

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Ryo Namiki. 2022-05-24. Security against collective attacks for a continuous-variable quantum key distribution protocol using homodyne detection and postselection. https://doi.org/10.7566/jpsj.92.014001

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