Cost-Optimization-Based Quantum Key Distribution over Quantum Key Pool Optical Networks [PDF]
Entropy, 2023 The Measurement-Device-Independent-Quantum Key Distribution (MDI-QKD) has the advantage of extending the secure transmission distances. The MDI-QKD combined with the Hybrid-Trusted and Untrusted Relay (HTUR) is used to deploy large-scale QKD networks ...
Jie Jia +4 more
doaj +2 more sources
Experimental Twin-Field Quantum Key Distribution over 1000 km Fiber Distance. [PDF]
Physical Review Letters, 2023 Quantum key distribution (QKD) aims to generate secure private keys shared by two remote parties. With its security being protected by principles of quantum mechanics, some technology challenges remain towards practical application of QKD.
Yang Liu +17 more
semanticscholar +1 more source
Continuous-variable quantum key distribution system: Past, present, and future [PDF]
Applied Physics Reviews, 2023 Quantum key distribution provides secure keys with information-theoretic security ensured by the principle of quantum mechanics. The continuous-variable version of quantum key distribution using coherent states offers the advantages of its compatibility ...
Yichen Zhang +4 more
semanticscholar +1 more source
Explicit asymptotic secret key rate of continuous-variable quantum key distribution with an arbitrary modulation [PDF]
Quantum, 2021 We establish an analytical lower bound on the asymptotic secret key rate of continuous-variable quantum key distribution with an arbitrary modulation of coherent states. Previously, such bounds were only available for protocols with a Gaussian modulation,
Aur'elie Denys +2 more
semanticscholar +1 more source
Quantum key distribution using deterministic single-photon sources over a field-installed fibre link [PDF]
npj Quantum Information, 2023 Quantum-dot-based single-photon sources are key assets for quantum information technology, supplying on-demand scalable quantum resources for computing and communication.
M. Zahidy +14 more
semanticscholar +1 more source
Mode-pairing quantum key distribution [PDF]
Nature Communications, 2022 Quantum key distribution — the establishment of information-theoretically secure keys based on quantum physics — is mainly limited by its practical performance, which is characterised by the dependence of the key rate on the channel transmittance R(η ...
Pei Zeng +3 more
semanticscholar +1 more source
Security of device-independent quantum key distribution protocols: a review [PDF]
Quantum, 2022 Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key exchange protocol in terms of security, as it can be performed securely with uncharacterised black-box devices.
I. W. Primaatmaja +5 more
semanticscholar +1 more source
The ideal wavelength for daylight free-space quantum key distribution [PDF]
APL Quantum, 2023 Quantum key distribution (QKD) has matured in recent years from laboratory proof-of-principle demonstrations to commercially available systems. One of the major bottlenecks is the limited communication distance in fiber networks due to the exponential ...
Mostafa Abasifard +7 more
semanticscholar +1 more source
Quantum Key Distribution Using a Quantum Emitter in Hexagonal Boron Nitride [PDF]
Advanced Quantum Technologies, 2023 Quantum key distribution (QKD) is considered the most immediate application to be widely implemented among a variety of potential quantum technologies. QKD enables sharing secret keys between distant users by using photons as information carriers.
Ali Al-Juboori +8 more
semanticscholar +1 more source
Implementation Security in Quantum Key Distribution [PDF]
Advanced Quantum Technologies, 2023 The problem of implementation security in quantum key distribution (QKD) refers to the difficulty of meeting the requirements of mathematical security proofs in real‐life QKD systems. Here, a succint review is provided on this topic, focusing on discrete‐
Víctor Zapatero +2 more
semanticscholar +1 more source