Secure quantum key distribution with realistic devices

F Xu, X Ma, Q Zhang, HK Lo, JW Pan - Reviews of modern physics, 2020‏ - APS
In principle, quantum key distribution (QKD) offers information-theoretic security based on
the laws of physics. In practice, however, the imperfections of realistic devices might …

Security in quantum cryptography

C Portmann, R Renner - Reviews of Modern Physics, 2022‏ - APS
Quantum cryptography exploits principles of quantum physics for the secure processing of
information. A prominent example is secure communication, ie, the task of transmitting …

High-rate quantum key distribution exceeding 110 Mb s–1

W Li, L Zhang, H Tan, Y Lu, SK Liao, J Huang, H Li… - Nature …, 2023‏ - nature.com
Quantum key distribution (QKD) can provide fundamentally proven secure communication.
Towards application, the secret key rate (SKR) is a key figure of merit for any QKD system …

Experimental quantum communication overcomes the rate-loss limit without global phase tracking

L Zhou, J Lin, YM **e, YS Lu, Y **g, HL Yin, Z Yuan - Physical Review Letters, 2023‏ - APS
Secure key rate (SKR) of point-point quantum key distribution (QKD) is fundamentally
bounded by the rate-loss limit. Recent breakthrough of twin-field (TF) QKD can overcome …

An integrated space-to-ground quantum communication network over 4,600 kilometres

YA Chen, Q Zhang, TY Chen, WQ Cai, SK Liao… - Nature, 2021‏ - nature.com
Quantum key distribution (QKD), has the potential to enable secure communication and
information transfer. In the laboratory, the feasibility of point-to-point QKD is evident from the …

Practical challenges in quantum key distribution

E Diamanti, HK Lo, B Qi, Z Yuan - npj Quantum Information, 2016‏ - nature.com
Quantum key distribution (QKD) promises unconditional security in data communication and
is currently being deployed in commercial applications. Nonetheless, before QKD can be …

Secure quantum key distribution

HK Lo, M Curty, K Tamaki - Nature Photonics, 2014‏ - nature.com
Secure communication is crucial in the Internet Age, and quantum mechanics stands poised
to revolutionize cryptography as we know it today. In this Review, we introduce the …

Provably secure and high-rate quantum key distribution with time-bin qudits

NT Islam, CCW Lim, C Cahall, J Kim, DJ Gauthier - Science advances, 2017‏ - science.org
The security of conventional cryptography systems is threatened in the forthcoming era of
quantum computers. Quantum key distribution (QKD) features fundamentally proven security …

Provably secure and practical quantum key distribution over 307 km of optical fibre

B Korzh, CCW Lim, R Houlmann, N Gisin, MJ Li… - Nature …, 2015‏ - nature.com
Proposed in 1984, quantum key distribution (QKD) allows two users to exchange provably
secure keys via a potentially insecure quantum channel. Since then, QKD has attracted …

Experimental satellite quantum communications

G Vallone, D Bacco, D Dequal, S Gaiarin, V Luceri… - Physical Review Letters, 2015‏ - APS
Quantum communication (QC), namely, the faithful transmission of generic quantum states,
is a key ingredient of quantum information science. Here we demonstrate QC with …