[en] Measurement-device-independent quantum key distribution (MDI-QKD), enhances
quantum cryptography by mitigating detector-side vulnerabilities. This study
analyzes MDI-QKD performance in thermal-loss and phase noise channels, modeled
as depolarizing and dephasing channels to capture thermal and phase noise
effects. Based on this channel framework, we derive analytical expressions for
Bell state measurement probabilities, quantum bit error rates (QBER), and
secret key rates (SKR) of MDI-QKD. Our simulations reveal that SKR decreases
exponentially with transmission distance, with performance further degraded by
increasing thermal noise and phase noise, particularly under high thermal noise
conditions. These findings offer insights into enhancing MDI-QKD's noise
resilience, supporting secure key generation in practical, noisy environments.
Disciplines :
Physics
Author, co-author :
PENG, Heyang ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
KOUDIA, Seid ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
OLEYNIK, Leonardo ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
External co-authors :
no
Language :
English
Title :
Performance Analysis of MDI-QKD in Thermal-Loss and Phase Noise Channels
Publication date :
In press
Event name :
IEEE International Conference on Quantum Computing and Engineering (QCE 2025)
Event organizer :
IEEE Computer Society
Event place :
Albuquerque, United States
Event date :
from 31 August to 5 September 2025
Audience :
International
Main work title :
Proceedings of the IEEE International Conference on Quantum Computing and Engineering (QCE 2025)
Publisher :
IEEE, Piscataway, NJ, United States
Peer reviewed :
Peer reviewed
Commentary :
8 pages, 3 figures, 1 table, 1 appendix. Accepted by IEEE
International Conference on Quantum Computing and Engineering (QCE)
