Impact of Pilot-aided Signal Schemes on Practical CV-QKD Security

We experimentally explore security vulnerabilities in CV-QKD systems due to receiver nonlinearities. We demonstrate that higher pilot powers can lead to underestimating excess noise, showing the critical need to align the signaling scheme with receiver characteristics.

Authors

Norbert Hanik (ORCID: https://orcid.org/0009-0000-0329-1091)
Andreas Stöhr (ORCID: https://orcid.org/0000-0003-1036-2120)
Tobias Fehenberger (ORCID: https://orcid.org/0000-0003-2504-1426)
Christian Schaeffer (ORCID: https://orcid.org/0000-0001-9604-5235)
Jonas Berl
Utku Akin
S. V. Ahamed
Vitaly Rymanov

Institutions

ADVA Optical Networking (Germany) (DE)
Communications Technology Laboratory (US)
Lightwave Photonics (United States) (US)
L-3 Communications (United States) (US)

Publication Details

Published: 2025-01-01
DOI: https://doi.org/10.1364/ofc.2025.w4i.7
Primary Topic: Error Correcting Code Techniques
Type: article
Field-Weighted Citation Impact: 0.00

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article

Impact of Pilot-aided Signal Schemes on Practical CV-QKD Security

Norbert Hanik, Andreas Stöhr, Tobias Fehenberger, Christian Schaeffer et al.

Jan 1, 2025

Error Correcting Code Techniques

article

Impact of Pilot-aided Signal Schemes on Practical CV-QKD Security

Norbert Hanik, Andreas Stöhr, Tobias Fehenberger, Christian Schaeffer, Jonas Berl, Utku Akin, S. V. Ahamed, Vitaly Rymanov

January 1, 2025article en

Abstract

We experimentally explore security vulnerabilities in CV-QKD systems due to receiver nonlinearities. We demonstrate that higher pilot powers can lead to underestimating excess noise, showing the critical need to align the signaling scheme with receiver characteristics.

ADVA Optical Networking (Germany) (DE), Communications Technology Laboratory (US), Lightwave Photonics (United States) (US), L-3 Communications (United States) (US)

Openalex Percentile: Top 87%

Error Correcting Code Techniques

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