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

We present a quantum key distribution system with a 2.5 GHz repetition rate using a three-
state time-bin protocol combined with a one-decoy approach. Taking advantage of …

Quantum key distribution provides secure keys resistant to code-breaking quantum
computers. The continuous-variable version of quantum key distribution offers the …

Quantum key distribution has emerged as the most viable scheme to guarantee information
security in the presence of large-scale quantum computers and, thanks to the continuous …

Quantum key distribution (QKD) is nowadays a well-established method for generating
secret keys at a distance in an information-theoretically secure way, as the secrecy of QKD …

Single-photon detectors (SPDs) are widely used in applications requiring extremely weak
light detection. In the near-infrared region, SPDs based on InGaAs/InP single-photon …

Superconducting nanowire single-photon detectors are a key technology for quantum
information and science due to their high efficiency, low timing jitter, and low dark counts. In …

Integrated photonics provides a promising platform for quantum key distribution (QKD)
system in terms of miniaturization, robustness, and scalability. Tremendous QKD works …

High-dimensional quantum key distribution (QKD) allows achievement of information-
theoretic secure communications, providing high key-generation rates, which cannot, in …

Quantum key distribution (QKD) offers future proof security based on fundamental laws of
physics. Long-distance QKD spanning regions such as the United Kingdom (UK) may …