3.6k citations · 19k across the 197 of their papers we have counts for
6 papers · 2 filters
Linear game non-contextuality and Bell inequalities - a graph-theoretic approach
Piotr Gnaciński, Monika Rosicka, Ravishankar Ramanathan +4
We study the classical and quantum values of one- and two-party linear games, an important class of unique games that generalizes the well-known XOR games to the case of non-binary…
Distributed correlations and information flows within a hybrid multipartite quantum-classical system
Bruno Leggio, Rosario Lo Franco, Diogo O. Soares-Pinto +2
Understanding the non-Markovian mechanisms underlying the revivals of quantum entanglement in the presence of classical environments is central in the theory of quantum information…
Steering is an essential feature of non-locality in quantum theory
Ravishankar Ramanathan, Dardo Goyeneche, Sadiq Muhammad +4
A physical theory is called non-local when observers can produce instantaneous effects over distant systems. Non-local theories rely on two fundamental effects: local uncertainty r…
Randomness amplification against no-signaling adversaries using two devices
Ravishankar Ramanathan, Fernando G. S. L. Brandão, Karol Horodecki +3
Recently, a physically realistic protocol amplifying the randomness of Santha-Vazirani sources producing cryptographically secure random bits was proposed; however for reasons of p…
Bound on Bell Inequalities by Fraction of Determinism and Reverse Triangle Inequality
P. Joshi, K. Horodecki, M. Horodecki +5
It is an established fact that entanglement is a resource. Sharing an entangled state leads to non-local correlations and to violations of Bell inequalities. Such non-local correla…
Quantum communication complexity advantage implies violation of a Bell inequality
Harry Buhrman, Lukasz Czekaj, Andrzej Grudka +5
We obtain a general connection between a quantum advantage in communication complexity and non-locality. We show that given any protocol offering a (sufficiently large) quantum adv…