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 …

Concerted efforts are underway to establish an infrastructure for a global quantum Internet to
realise a spectrum of quantum technologies. This will enable more precise sensors, secure …

The problem of implementation security in quantum key distribution (QKD) refers to the
difficulty of meeting the requirements of mathematical security proofs in real‐life QKD …

Many quantum key distribution systems employ a laser followed by an optical attenuator to
prepare weak coherent states in the source. Their mean photon number must be …

A high-dimensional quantum key distribution (QKD), which adopts degrees of freedom of the
orbital angular momentum (OAM) states, is beneficial to realize secure and high-speed …

Quantum key distribution (QKD) protocols with threshold detectors are driving high-
performance QKD demonstrations. The corresponding security proofs usually assume that …

Quantum key distribution (QKD), which theoretically provides unconditional secure
communication, has developed rapidly in the past decades. However, the practical QKD …

Quantum key distribution (QKD) has been proved to be information-theoretically secure in
theory. Unfortunately, the imperfect devices in practice compromise its security. Thus, to …

Over the last decade, free-space quantum key distribution (QKD), a secure key sharing
protocol, has risen in popularity due the adaptable nature of free-space networking and the …

Quantum key distribution (QKD) is an effective technique to share unconditional secure keys
among a pair of legal distant users with the existence of eavesdroppers. It depends upon …