Finite-size security of continuous-variable quantum key distribution with digital signal processing

T Matsuura, K Maeda, T Sasaki, M Koashi - Nature communications, 2021 - nature.com
In comparison to conventional discrete-variable (DV) quantum key distribution (QKD),
continuous-variable (CV) QKD with homodyne/heterodyne measurements has distinct …

Security of discrete-modulated continuous-variable quantum key distribution

S Bäuml, C Pascual-García, V Wright, O Fawzi… - Quantum, 2024 - quantum-journal.org
Continuous variable quantum key distribution with discrete modulation has the potential to
provide information-theoretic security using widely available optical elements and existing …

High-dimensional measurement-device-independent quantum key distribution on two-dimensional subspaces

L Dellantonio, AS Sørensen, D Bacco - Physical Review A, 2018 - APS
Quantum key distribution (QKD) provides ultimate cryptographic security based on the laws
of quantum mechanics. For point-to-point QKD protocols, the security of the generated key is …

Continuous-variable quantum key distribution with 1 Mbps secure key rate

D Huang, D Lin, C Wang, W Liu, S Fang, J Peng… - Optics express, 2015 - opg.optica.org
We report the first continuous-variable quantum key distribution (CVQKD) experiment to
enable the creation of 1 Mbps secure key rate over 25 km standard telecom fiber in a coarse …

[HTML][HTML] Experimental measurement-device-independent type quantum key distribution with flawed and correlated sources

J Gu, XY Cao, Y Fu, ZW He, ZJ Yin, HL Yin, ZB Chen - Science Bulletin, 2022 - Elsevier
The security of quantum key distribution (QKD) is severely threatened by discrepancies
between realistic devices and theoretical assumptions. Recently, a significant framework …

Generating the local oscillator “locally” in continuous-variable quantum key distribution based on coherent detection

B Qi, P Lougovski, R Pooser, W Grice, M Bobrek - Physical Review X, 2015 - APS
Continuous-variable quantum key distribution (CV-QKD) protocols based on coherent
detection have been studied extensively in both theory and experiment. In all the existing …

Quantum key distribution with setting-choice-independently correlated light sources

A Mizutani, G Kato, K Azuma, M Curty, R Ikuta… - npj Quantum …, 2019 - nature.com
Despite the enormous theoretical and experimental progress made so far in quantum key
distribution (QKD), the security of most existing practical QKD systems is not rigorously …

High-speed continuous-variable quantum key distribution without sending a local oscillator

D Huang, P Huang, D Lin, C Wang, G Zeng - Optics letters, 2015 - opg.optica.org
We report a 100-MHz continuous-variable quantum key distribution (CV-QKD) experiment
over a 25-km fiber channel without sending a local oscillator (LO). We use a “locally” …

Homodyne-detector-blinding attack in continuous-variable quantum key distribution

H Qin, R Kumar, V Makarov, R Alléaume - Physical Review A, 2018 - APS
We propose an efficient strategy to attack a continuous-variable (CV) quantum key
distribution (QKD) system, which we call homodyne detector blinding. This attack strategy …

Long-distance quantum key distribution secure against coherent attacks

B Fröhlich, M Lucamarini, JF Dynes, LC Comandar… - Optica, 2017 - opg.optica.org
Quantum key distribution (QKD) permits information-theoretically secure transmission of
digital encryption keys, assuming that the behavior of the devices employed for the key …