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 …

Quantum key distribution (QKD) is the first quantum information task to reach the level of
mature technology, already fit for commercialization. It aims at the creation of a secret key …

The security of quantum key distribution (QKD) usually relies on that the users' devices are
well characterized according to the security models made in the security proofs. In contrast …

Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key
exchange protocol in terms of security, as it can be performed securely with uncharacterised …

Quantum optical Gaussian states are a type of important robust quantum states which are
manipulatable by the existing technologies. So far, most of the important quantum …

Quantum entanglement is one of the most extraordinary effects in quantum physics, with
many applications in the emerging field of quantum information science. In particular, it …

A parametric down-conversion (PDC) source can be used as either a triggered single-
photon source or an entangled-photon source in quantum key distribution (QKD). The …

The decoy-state scheme is the most widely implemented quantum-key-distribution protocol
in practice. In order to account for the finite-size key effects on the achievable secret key …

Quantum key distribution (QKD) can be used to generate secret keys between two distant
parties. Even though QKD has been proven unconditionally secure against eavesdroppers …

Quantum key distribution (QKD) is a secure key generation method between two distant
parties by wisely exploiting properties of quantum mechanics. In QKD, experimental …