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 …

Smart grid depends on an advanced communication network to collect information from the
power grid, and to disseminate control commands to the control devices. To safeguard the …

The alternative variant of measurement-device-independent quantum key distribution (MDI
QKD), called asynchronous MDI QKD or mode-pairing MDI QKD, offers similar repeaterlike …

Guaranteeing nonrepudiation, unforgeability as well as transferability of a signature is one of
the most vital safeguards in today's e-commerce era. Based on fundamental laws of …

Measurement-device-independent quantum key distribution (MDI-QKD) provides us a
powerful approach to resist all attacks at detection side. Besides the unconditional security …

As an essential ingredient of quantum networks, quantum conference key agreement
(QCKA) provides unconditional secret keys among multiple parties, which enables only …

Large-scale quantum communication networks are still a huge challenge due to the rate-
distance limit of quantum key distribution (QKD). Recently, twin-field (TF) QKD has been …

Implementation of a twin-field quantum key distribution network faces limitations, including
the low tolerance of interference errors for phase-matching-type protocols and the strict …

Noiseless linear amplification (NLA) is useful for a wide variety of quantum protocols. Here
we propose a fully scalable amplifier which, for asymptotically large sizes, can perform …

In this paper, we propose a measurement-device-independent quantum-key-distribution
(MDI-QKD) protocol using orbital angular momentum (OAM) in free space links, named the …