Bell's 1964 theorem, which states that the predictions of quantum theory cannot be
accounted for by any local theory, represents one of the most profound developments in the …

Random numbers are a fundamental resource in science and engineering with important
applications in simulation and cryptography. The inherent randomness at the core of …

Quantum physics can be exploited to generate true random numbers, which have important
roles in many applications, especially in cryptography. Genuine randomness from the …

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 …

This progress report covers recent developments in the area of quantum randomness, which
is an extraordinarily interdisciplinary area that belongs not only to physics, but also to …

Bell's theorem states that some predictions of quantum mechanics cannot be reproduced by
a local-realist theory. That conflict is expressed by Bell's inequality, which is usually derived …

Do completely unpredictable events exist? Classical physics excludes fundamental
randomness. Although quantum theory makes probabilistic predictions, this does not imply …

Bell's theorem is typically understood as the proof that quantum theory is incompatible with
local-hidden-variable models. More generally, we can see the violation of a Bell inequality …

Among those who make a living from the science of secrecy, worry and paranoia are just
signs of professionalism. Can we protect our secrets against those who wield superior …

Correlations that cannot be reproduced with local variables certify the generation of private
randomness. Usually, the violation of a Bell inequality is used to quantify the amount of …