Quantum key distribution (QKD) enables two remote users to share a string of key bits with
information‐theoretical security. Parameter optimization is a crucial step in achieving optimal …

A crucial goal for quantum key distribution (QKD) is to transmit unconditionally secure keys
over long distances. Previous studies show that the key rate of point‐to‐point QKD is limited …

The intense research activity on Twin-Field (TF) quantum key distribution (QKD) is motivated
by the fact that two users can establish a secret key by relying on single-photon interference …

Measurement-device-independent quantum key distribution (MDI-QKD) can eliminate
detector side channels and prevent all attacks on detectors. The future of MDI-QKD is a …

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

Developing quantum key distribution (QKD) has been recently directed toward distance
extension and network expansion for real-world secure communications. Considering a …

Quantum key distribution (QKD) offers a reliable solution to communication problems that
require long-term data security. For its widespread use, however, the rate and reach of QKD …

The sending-or-not-sending (SNS) protocol of the twin-field quantum key distribution can
tolerate large misalignment error and its key rate can exceed the linear bound of …

Twin-field (TF) quantum key distribution (QKD) is highly attractive because it can beat the
fundamental limit of secret key rate for point-to-point QKD without quantum repeaters. Many …

Twin-field quantum key distribution (TF-QKD) can beat the linear bound of repeaterless QKD
systems. After the proposal of the original protocol, multiple papers have extended the …