Continuous-variable QKD over 50 km commercial fiber

Y Zhang, Z Li, Z Chen, C Weedbrook… - Quantum Science …, 2019 - iopscience.iop.org
The continuous-variable version of quantum key distribution (QKD) offers the advantages
(over discrete-variable systems) of higher secret key rates in metropolitan areas, as well as …

Self-referenced continuous-variable quantum key distribution protocol

DBS Soh, C Brif, PJ Coles, N Lütkenhaus… - Physical Review X, 2015 - APS
We introduce a new continuous-variable quantum key distribution (CV-QKD) protocol, self-
referenced CV-QKD, that eliminates the need for transmission of a high-power local …

Trojan-horse attacks threaten the security of practical quantum cryptography

N Jain, E Anisimova, I Khan, V Makarov… - New Journal of …, 2014 - iopscience.iop.org
A quantum key distribution (QKD) system may be probed by an eavesdropper Eve by
sending in bright light from the quantum channel and analyzing the backreflections. We …

Atmospheric continuous-variable quantum communication

B Heim, C Peuntinger, N Killoran, I Khan… - New Journal of …, 2014 - iopscience.iop.org
We present a quantum communication experiment conducted over a point-topoint free-
space link of 1.6 km in urban conditions. We study atmospheric influences on the capability …

Continuous-variable quantum key distribution with rateless reconciliation protocol

C Zhou, X Wang, Y Zhang, Z Zhang, S Yu, H Guo - Physical Review Applied, 2019 - APS
Information reconciliation is crucial for continuous-variable quantum key distribution (CV
QKD) because its performance affects the secret key rate and maximal secure transmission …

Composable security analysis of continuous-variable measurement-device-independent quantum key distribution with squeezed states for coherent attacks

Z Chen, Y Zhang, G Wang, Z Li, H Guo - Physical Review A, 2018 - APS
Measurement-device-independent quantum key distribution protocol, whose security
analysis does not rely on any assumption on the detection system, can immune the attacking …

One-time shot-noise unit calibration method for continuous-variable quantum key distribution

Y Zhang, Y Huang, Z Chen, Z Li, S Yu, H Guo - Physical Review Applied, 2020 - APS
The shot-noise unit in continuous-variable quantum key distribution plays an important and
fundamental role in experimental implementation, as it is used as a normalization parameter …

On-chip continuous-variable quantum entanglement

G Masada, A Furusawa - Nanophotonics, 2016 - degruyter.com
Entanglement is an essential feature of quantum theory and the core of the majority of
quantum information science and technologies. Quantum computing is one of the most …

Countermeasure for negative impact of a practical source in continuous-variable measurement-device-independent quantum key distribution

L Huang, X Wang, Z Chen, Y Sun, S Yu, H Guo - Physical Review Applied, 2023 - APS
Continuous-variable measurement-device-independent quantum key distribution (CV-MDI
QKD) can fundamentally defend all attacks on the measurement devices. Consequently …

Certifying quantumness: Benchmarks for the optimal processing of generalized coherent and squeezed states

Y Yang, G Chiribella, G Adesso - Physical Review A, 2014 - APS
Quantum technology promises revolutionary advantages in information processing and
transmission compared to classical technology; however, determining which specific …