Towards practical security of continuous-variable quantum key distribution

Cosmo Lupo

doi:10.1103/PhysRevA.102.022623

Towards practical security of continuous-variable quantum key distribution

Quantum Physics 2020-09-01 v3

Authors: Cosmo Lupo

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Abstract

Rigorous mathematical proofs of the security of continuous-variable quantum key distribution (CV QKD) have been obtained recently. Unfortunately, these security proofs rely on assumptions that are hardly met in experimental practice. Here I investigate these issues in detail, and discuss experimentally-friendly workarounds to assess the security of CV QKD. The aim of this paper is to show that there are hidden and unsolved issues and to indicate possible partial solutions. To provide a complete and rigorous mathematical security proof is out of the scope of this contribution.

Keywords

quantum key distribution quantum cryptography quantum computing

Cite

@article{arxiv.1911.04799,
  title  = {Towards practical security of continuous-variable quantum key distribution},
  author = {Cosmo Lupo},
  journal= {arXiv preprint arXiv:1911.04799},
  year   = {2020}
}

Comments

Comments welcome. V3: close to published version

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