Quantum communications is the art of exchanging and manipulating information beyond the
capabilities of the conventional technologies using the laws of quantum mechanics. With …

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 …

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 …

Quantum key distribution—the establishment of information-theoretically secure keys based
on quantum physics—is mainly limited by its practical performance, which is characterised …

Quantum key distribution (QKD) networks are promising to serve large numbers of users
with information-theoretic secure communication. In QKD networks, the detection-safe …

Interference, which refers to the phenomenon associated with the superposition of waves,
has played a crucial role in the advancement of physics and finds a wide range of …

In the past two decades, quantum key distribution networks based on telecom fibers have
been implemented on metropolitan and intercity scales. One of the bottlenecks lies in the …

Distributing quantum information between remote systems will necessitate the integration of
emerging quantum components with existing communication infrastructure. This requires …

We propose a fully passive linear optical quantum key distribution (QKD) source that
implements both random decoy-state and encoding choices with postselection only, thus …

Decoy-state measurement-device-independent quantum key distribution (MDI-QKD) is
regarded as one of the most promising protocols since it is physically immune to all fatal …