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Quantum Cryptography Security

A New Security Proof for Twin-Field Quantum Key Distribution (QKD)

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Authors: Walter O. Krawec

Year

2023

Paper ID

13761

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

77

Citations

2

Abstract

Twin-field QKD (TF-QKD) protocols allow for increased key rates over long distances when compared to standard QKD protocols. They are even able to surpass the PLOB bound without the need for quantum repeaters. In this work, we revisit a previous TF-QKD protocol and derive a new, simple, proof of security for it. We also look at several variants of the protocol and investigate their performance, showing some interesting behaviors due to the asymmetric nature of the protocol.

Why This Paper Matters

  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
  • It adds a 2023 reference point for readers tracking recent quantum research.
  • Twin-field QKD (TF-QKD) protocols allow for increased key rates over long distances when compared to standard QKD protocols.

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References & Citation Signals

[1] DOI https://doi.org/10.3390/app14010187 [2] Publisher https://doi.org/10.3390/app14010187

Local Citation Graph (Related-Paper Links)

Current Paper #13761 #68466 Uncloneable Encryption from Dec...

External citation index: OpenAlex citation signal • updated 2026-06-12 01:45:52

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