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 …

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 …

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 …

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 …

Robust and adaptable quantum key distribution network without trusted nodes

GJ Fan-Yuan, FY Lu, S Wang, ZQ Yin, DY He, W Chen… - Optica, 2022 - opg.optica.org
Quantum key distribution (QKD) networks are promising to serve large numbers of users
with information-theoretic secure communication. In QKD networks, the detection-safe …

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 without optical frequency dissemination

L Zhou, J Lin, Y Jing, 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 …

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 …