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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 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
1002 km twin-field quantum key distribution with finite-key analysis [PDF]
Quantum Frontiers, 2023 Quantum key distribution (QKD) holds the potential to establish secure keys over long distances. The distance of point-to-point QKD secure key distribution is primarily impeded by the transmission loss inherent to the channel.
Yang Liu +18 more
semanticscholar +1 more source
A hybrid integrated quantum key distribution transceiver chip [PDF]
npj Quantum Information, 2023 Quantum photonic technologies, such as quantum key distribution, are already benefiting greatly from the rise of integrated photonics. However, the flexibility in design of these systems is often restricted by the properties of the integration material ...
J. Dolphin +5 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
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
Chip-based quantum key distribution
AAPPS Bulletin, 2021 Quantum key distribution is a matured quantum science and technology. Over the last 20 years, there has been substantial research and development in this area.
Leong-Chuan Kwek +6 more
doaj +1 more source
No Signaling and Quantum Key Distribution [PDF]
Physical Review Letters, 2005 Standard quantum key distribution protocols are provably secure against eavesdropping attacks, if quantum theory is correct. It is theoretically interesting to know if we need to assume the validity of quantum theory to prove the security of quantum key distribution, or whether its security can be based on other physical principles.
Barrett, Jonathan +2 more
openaire +3 more sources
Cost-Optimization-Based Quantum Key Distribution over Quantum Key Pool Optical Networks
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 +1 more source