Quantum repeaters: From quantum networks to the quantum internet

K Azuma, SE Economou, D Elkouss, P Hilaire… - Reviews of Modern …, 2023‏ - APS
A quantum internet is the holy grail of quantum information processing, enabling the
deployment of a broad range of quantum technologies and protocols on a global scale …

Advances in quantum cryptography

S Pirandola, UL Andersen, L Banchi… - Advances in optics …, 2020‏ - opg.optica.org
Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

Experimental twin-field quantum key distribution over 1000 km fiber distance

Y Liu, WJ Zhang, C Jiang, JP Chen, C Zhang… - Physical Review Letters, 2023‏ - APS
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 …

Mode-pairing quantum key distribution

P Zeng, H Zhou, W Wu, X Ma - Nature Communications, 2022‏ - nature.com
Quantum key distribution—the establishment of information-theoretically secure keys based
on quantum physics—is mainly limited by its practical performance, which is characterised …

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

YM **e, 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 …

Sending-or-not-sending with independent lasers: Secure twin-field quantum key distribution over 509 km

JP Chen, C Zhang, Y Liu, C Jiang, W Zhang, XL Hu… - Physical review …, 2020‏ - APS
Twin-field (TF) quantum key distribution (QKD) promises high key rates over long distances
to beat the rate-distance limit. Here, applying the sending-or-not-sending TF QKD protocol …

Twin-field quantum key distribution over 830-km fibre

S Wang, ZQ Yin, DY He, W Chen, RQ Wang, P Ye… - Nature …, 2022‏ - nature.com
Quantum key distribution (QKD) provides a promising solution for sharing information-
theoretic secure keys between remote peers with physics-based protocols. According to the …

Twin-field quantum key distribution over a 511 km optical fibre linking two distant metropolitan areas

JP Chen, C Zhang, Y Liu, C Jiang, WJ Zhang… - Nature …, 2021‏ - nature.com
The basic principle of quantum mechanics guarantees the unconditional security of quantum
key distribution (QKD),,,–at the cost of forbidding the amplification of a quantum state. As a …

Twin-field quantum key distribution without optical frequency dissemination

L Zhou, J Lin, Y **g, Z Yuan - nature communications, 2023‏ - nature.com
Twin-field (TF) quantum key distribution (QKD) has rapidly risen as the most viable solution
to long-distance secure fibre communication thanks to its fundamentally repeater-like rate …

600-km repeater-like quantum communications with dual-band stabilization

M Pittaluga, M Minder, M Lucamarini, M Sanzaro… - Nature …, 2021‏ - nature.com
Twin-field (TF) quantum key distribution (QKD) fundamentally alters the rate-distance
relationship of QKD, offering the scaling of a single-node quantum repeater. Although recent …