Device-independent quantum key distribution (DI-QKD) provides the gold standard for
secure key exchange. Not only does it allow for information-theoretic security based on …

Device-independent quantum key distribution (DIQKD) is the art of using untrusted devices
to distribute secret keys in an insecure network. It thus represents the ultimate form of …

The rates of several device-independent (DI) protocols, including quantum key-distribution
(QKD) and randomness expansion (RE), can be computed via an optimization of the …

Semidefinite programs are convex optimisation problems involving a linear objective
function and a domain of positive semidefinite matrices. Over the last two decades, they …

The goal of quantum key distribution (QKD) is to establish a secure key between two parties
connected by an insecure quantum channel. To use a QKD protocol in practice, one has to …

The rates of quantum cryptographic protocols are usually expressed in terms of a conditional
entropy minimized over a certain set of quantum states. In particular, in the device …

Quantum steering is an important correlation in quantum information theory. A recent work
[Nat. Commun. 12, 2410 (2021) NCAOBW 2041-1723 10.1038/s41467-021-22353-3] …

Artificial intelligence (AI) and classical machine learning (ML) techniques have
revolutionised numerous fields, including quantum communication. Quantum …

Finite key analysis of quantum key distribution (QKD) is an important tool for any QKD
implementation. While much work has been done on the framework of finite key analysis, the …

Quantum steering is a central resource for one-sided device-independent quantum
information. It is manipulated via one-way local operations and classical communication …