Random numbers are central to cryptography and various other tasks. The intrinsic
probabilistic nature of quantum mechanics has allowed us to construct a large number of …

The generation of random numbers is a task of paramount importance in modern science. A
central problem for both classical and quantum randomness generation is to estimate the …

Quantum steering refers to the possibility for Alice to remotely steer Bob's state by
performing local measurements on her half of a bipartite system. Two necessary ingredients …

The goal of self-testing is to characterize an a priori unknown quantum system based solely
on measurement statistics, ie, using an uncharacterized measurement device. Here we …

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

An approach to quantum random number generation based on unambiguous quantum state
discrimination is developed. We consider a prepare-and-measure protocol, where two …

Quantum Cryptography: Key Distribution and Beyond Page 1 Quantum Cryptography: Key
Distribution and Beyond Akshata Shenoy-Hejamadi 1, Anirban Pathak 2 & Srikanth …

We consider the problem of testing the dimension of uncharacterized classical and quantum
systems in a prepare-and-measure setup. Here we assume the preparation and …

Random access codes (RACs) are used by a party to, with limited communication, access
an arbitrary subset of information held by another party. Quantum resources are known to …

Quantum random access codes (QRACs) are key tools for a variety of protocols in quantum
information theory. These are commonly studied in prepare-and-measure scenarios in …