Results 91 to 100 of about 7,608 (211)

LDPC for QKD Reconciliation

CoRR, 2012
9 pages with Pseudo code and matrix correction ...
Alan Mink, Anastase Nakassis
openaire   +3 more sources

Tunable Coupler–Augmented Microrings: Reconfigurable Q‐Factor Control for Foundry‐Scale Quantum Light Sources

Nanophotonics, Volume 15, Issue 6, 27 March 2026.
Scalable quantum photonics require robust realization of quantum light sources for foundry‐scale fabrication. An interferometrically coupled silicon nitride microring resonator enables post‐fabrication control of bus–ring coupling. Thermal phase shifters adjust the Q‐factor and the pair generation rate, revealing that optimal generation does not occur ...
Jan Heine, Juan Samuel Sebastián Durán Gómez, Michael Kues   +2 more
wiley   +1 more source

High-dimensional coherent one-way quantum key distribution

npj Quantum Information
High-dimensional quantum key distribution (QKD) offers secure communication with key rates that surpass those of QKD protocols utilizing two-dimensional encoding. However, existing high-dimensional QKD protocols require additional experimental resources,
Kfir Sulimany, Guy Pelc, Rom Dudkiewicz, Simcha Korenblit, Hagai S. Eisenberg, Yaron Bromberg, Michael Ben-Or   +6 more
doaj   +1 more source

Mode pairing quantum key distribution with light source monitoring

New Journal of Physics
Mode pairing quantum key distribution (MP-QKD) overcomes the repeaterless bound without requiring phase locking and phase tracking. However, MP-QKD still assumes that the light source is trusted, which can present challenges in practical deployments and ...
Zhenhua Li, Tianqi Dou, Yuheng Xie, Weiwen Kong, Na Chen, Qi Zhao, Wenpeng Gao, Peizhe Han, Yuanchen Hao, Haiqiang Ma, Yang Liu, Jianjun Tang   +11 more
doaj   +1 more source

QKD in Isabelle -- Bayesian Calculation

CoRR, 2019
In this paper, we present a first step towards a formalisation of the Quantum Key Distribution algorithm in Isabelle. We focus on the formalisation of the main probabilistic argument why Bob cannot be certain about the key bit sent by Alice before he does not have the chance to compare the chosen polarization scheme.
openaire   +2 more sources

Placement-Specific Sufficient QKD Block Sizes for Hybrid QKD–ML-KEM Systems: Finite-Key Planning and Split-Security Provisioning

IEEE Access
Hybrid quantum key distribution (QKD) and post-quantum cryptography (PQC) systems are often described as layered security architectures, yet deployments face a basic provisioning question: how many QKD bits are needed, and where should they enter an ML ...
Chavis Srichan, Sartra Wongthanavasu, Pobporn Danvirutai   +2 more
doaj   +1 more source

Discretized Gaussian Modulation-Based Continuous Variable (CV)-QKD

, 2019
To overcome the low-reconciliation-efficiency problem of Gaussian modulation (GM)-based-CV-QKD, we propose to use discretized-GM-based-CV-QKD. This scheme has complexity and reconciliation-efficiency similar to discrete modulation (DM)-based-CV-QKD and ...
Ivan B. Djordjevic, Djordjevic, Ivan B.
core   +1 more source

Security of QKD-systems with detector efficiency mismatch [PDF]

, 2008
The rules of quantum mechanics makes it possible to exchange a secret key at a distance. This is called quantum key distribution (QKD). In theory the key exchange can be made completely secure. Real QKD implementations however, has numerous imperfections.
Lydersen, Lars Vincent van De Wiel
core   +1 more source

Measurement-device-independent QKD over asymmetric channels

, 2019
© 2019 The Author(s). We propose and demonstrate an efficient protocol that enables a scalable high-rate measurement-device-independent (MDI) QKD over asymmetric channels.
Zhang, Weijun, Fang, Xiao Tian, Pan, Jian Wei, Li, Hao, Wang, Zhen, Wei, Kejin, Liu, Nai Le, Chen, Teng Yun, Lo, Hoi Kwong, Hui Liu, Hao Liang, Zhen Wang, Zhang, Si Jie, Liang, Hao, Nai-Le Liu, Hoi-Kwong Lo, Liu, Hui, Wenyuan Wang, Li Li, Xu, Feihu, Hao Li, Li, Li, Feihu Xu, Xiao-Tian Fang, Lixing You, Jian-Wei Pan, Kejin Wei, Weijun Zhang, You, Lixing, Teng-Yun Chen, Si-Jie Zhang, Wang, Wenyuan   +31 more
core   +1 more source

Entanglement model for mode-pairing quantum key distribution

Physical Review Research
Mode-pairing (MP) quantum key distribution (QKD) eliminates the requirements of phase locking and phase tracking compared with twin field (TF) QKD while still surpassing the fundamental rate-distance limit of QKD.
Yi-Fei Lu, Yang Wang, Hong-Wei Li, Mu-Sheng Jiang, Xiao-Xu Zhang, Ying-Ying Zhang, Yu Zhou, Xiao-Lei Jiang, Hai-Tao Wang, Yan-Mei Zhao, Chun Zhou, Wan-Su Bao   +11 more
doaj   +1 more source