779 citations · 2.8k across the 77 of their papers we have counts for
9 papers · 2 filters
Experimental Tests of Classical and Quantum Dimensions
Johan Ahrens, Piotr Badziag, Marcin Pawlowski +2
We report on an experimental test of classical and quantum dimension. We have used a dimension witness which can distinguish between quantum and classical systems of dimension 2,3…
Device-independent quantum key distribution based on measurement inputs
Ramij Rahaman, Matthew G. Parker, Piotr Mironowicz +1
We provide an analysis of a new family of device independent quantum key distribution (QKD) protocols with several novel features: (a) The bits used for the secret key do not come…
When Are Popescu-Rohrlich Boxes and Random Access Codes Equivalent?
Andrzej Grudka, Karol Horodecki, Michał Horodecki +2
We study a problem of interconvertibility of two supra-quantum resources: one is so called PR-box, which violates CHSH inequality up to maximal algebraic bound, and second is so ca…
Elemental and tight monogamy relations in nonsignalling theories
R. Augusiak, M. Demianowicz, M. Pawłowski +2
Physical principles constrain the way nonlocal correlations can be distributed among distant parties. These constraints are usually expressed by monogamy relations that bound the a…
Robustness of quantum randomness expansion protocols in the presence of noise
Piotr Mironowicz, Marcin Pawłowski
In this paper we investigate properties of several randomness generation protocols in the device independent framework. Using Bell-type inequalities it is possible to certify that…
Free randomness amplification using bipartite chain correlations
Andrzej Grudka, Karol Horodecki, Michał Horodecki +3
A direct analysis of the protocol of randomness amplification using Bell inequality violation is performed in terms of the convex combination of no-signaling boxes required to simu…
Robust amplification of Santha-Vazirani sources with three devices
Piotr Mironowicz, Rodrigo Gallego, Marcin Pawlowski
We demonstrate that amplification of arbitrarily weak randomness is possible using quantum resources. We present a randomness amplification protocol that involves Bell experiments.…
Weak randomness in device independent quantum key distribution and the advantage of using high dimensional entanglement
Marcus Huber, Marcin Pawlowski
We show that in device independent quantum key distribution protocols the privacy of randomness is of crucial importance. For sublinear test sample sizes even the slightest guessin…
Strategy for quantum algorithm design assisted by machine learning
Jeongho Bang, Junghee Ryu, Seokwon Yoo +2
We propose a method for quantum algorithm design assisted by machine learning. The method uses a quantum-classical hybrid simulator, where a "quantum student" is being taught by a…