English

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

Quantum Physics 2022-12-05 v2

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.

Keywords

Cite

@article{arxiv.2205.11820,
  title  = {Security against collective attacks for a continuous-variable quantum key distribution protocol using homodyne detection and postselection},
  author = {Ryo Namiki},
  journal= {arXiv preprint arXiv:2205.11820},
  year   = {2022}
}

Comments

7 pages, 2 figures

R2 v1 2026-06-24T11:26:36.942Z