Breaking the rate-loss bound of quantum key distribution with asynchronous two-photon interference

YM Xie, YS Lu, CX Weng, XY Cao, ZY Jia, Y Bao… - PRX Quantum, 2022 - APS
Twin-field quantum key distribution can overcome the secret key capacity of repeaterless
quantum key distribution via single-photon interference. However, to compensate for the …

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

L Zhou, J Lin, YM Xie, YS Lu, Y Jing, 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 …

Experimental quantum secure network with digital signatures and encryption

HL Yin, Y Fu, CL Li, CX Weng, BH Li, J Gu… - National Science …, 2023 - academic.oup.com
Cryptography promises four information security objectives, namely, confidentiality, integrity,
authenticity and non-repudiation, to support trillions of transactions annually in the digital …

Experimental quantum e-commerce

XY Cao, BH Li, Y Wang, Y Fu, HL Yin, ZB Chen - Science Advances, 2024 - science.org
E-commerce, a type of trading that occurs at a high frequency on the internet, requires
guaranteeing the integrity, authentication, and nonrepudiation of messages through long …

Experimental quantum Byzantine agreement on a three-user quantum network with integrated photonics

X Jing, C Qian, CX Weng, BH Li, Z Chen, CQ Wang… - Science …, 2024 - science.org
Quantum communication networks are crucial for both secure communication and
cryptographic networked tasks. Building quantum communication networks in a scalable …

High-rate intercity quantum key distribution with a semiconductor single-photon source

J Yang, Z Jiang, F Benthin, J Hanel… - Light: Science & …, 2024 - nature.com
Quantum key distribution (QKD) enables the transmission of information that is secure
against general attacks by eavesdroppers. The use of on-demand quantum light sources in …

Single-emitter quantum key distribution over 175 km of fibre with optimised finite key rates

CL Morrison, RG Pousa, F Graffitti, ZX Koong… - Nature …, 2023 - nature.com
Quantum key distribution with solid-state single-photon emitters is gaining traction due to
their rapidly improving performance and compatibility with future quantum networks. Here …

Finite key effects in satellite quantum key distribution

JS Sidhu, T Brougham, D McArthur, RG Pousa… - npj Quantum …, 2022 - nature.com
Global quantum communications will enable long-distance secure data transfer, networked
distributed quantum information processing, and other entanglement-enabled technologies …

One-time universal hashing quantum digital signatures without perfect keys

BH Li, YM Xie, XY Cao, CL Li, Y Fu, HL Yin… - Physical Review Applied, 2023 - APS
Quantum digital signatures (QDSs), generating correlated bit strings among three remote
parties for signatures through quantum law, can guarantee nonrepudiation, authenticity, and …

Advantages of asynchronous measurement-device-independent quantum key distribution in intercity networks

YM Xie, JL Bai, YS Lu, CX Weng, HL Yin, ZB Chen - Physical Review Applied, 2023 - APS
The alternative variant of measurement-device-independent quantum key distribution (MDI
QKD), called asynchronous MDI QKD or mode-pairing MDI QKD, offers similar repeaterlike …