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
Receiver-Device-Independent Quantum Key Distribution [PDF]
Quantum, 2022 We present protocols for quantum key distribution in a prepare-and-measure setup with an asymmetric level of trust. While the device of the sender (Alice) is partially characterized, the receiver's (Bob's) device is treated as a black-box.
Marie Ioannou +11 more
doaj +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
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
Quantum Key Distribution Networks: Challenges and Future Research Issues in Security
Applied Sciences, 2021 A quantum key distribution (QKD) network is proposed to allow QKD protocols to be the infrastructure of the Internet for distributing unconditional security keys instead of existing public-key cryptography based on computationally complex mathematical ...
Chia-Wei Tsai +4 more
doaj +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
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
Advances in device-independent quantum key distribution [PDF]
npj Quantum Information, 2022 Device-independent quantum key distribution (DI-QKD) provides the gold standard for secure key exchange. Not only does it allow for information-theoretic security based on quantum mechanics, but it also relaxes the need to physically model the devices ...
Víctor Zapatero +6 more
semanticscholar +1 more source