Quantum key distribution (QKD) can provide fundamentally proven secure communication.
Towards application, the secret key rate (SKR) is a key figure of merit for any QKD system …

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

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

The passive approach to quantum key distribution (QKD) consists of removing all active
modulation from the users' devices, a highly desirable countermeasure to get rid of …

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 …

The Bennett-Brassard 1984 (BB84) protocol is the most widely implemented quantum key
distribution (QKD) scheme. However, despite enormous theoretical and experimental efforts …

The photonic temporal degree of freedom is one of the most promising platforms for
quantum communication over fiber networks and free-space channels. In particular, time-bin …

Superconducting nanowire single-photon detectors (SNSPDs) are the highest-performing
photon-counting technology in the near-infrared region. Because of delay-line effects, large …

One of the most prominent techniques to enhance the performance of practical quantum key
distribution (QKD) systems with laser sources is the decoy-state method. Current decoy-state …

Over the last two decades, integrated photonics has profoundly revolutionized the domain of
quantum technologies. The ongoing second quantum revolution stands as a timely …