74 citations · 462 across the 14 of their papers we have counts for
10 papers · 1 filter
Graph-theoretic approach to Bell experiments with low detection efficiency
Zhen-Peng Xu, Jonathan Steinberg, Jaskaran Singh +3
Bell inequality tests where the detection efficiency is below a certain threshold can be simulated with local hidden-variable models. Here, we introduce a method to…
Minimal true-implies-false and true-implies-true sets of propositions in noncontextual hidden variable theories
Adán Cabello, José R. Portillo, Alberto Solís +1
An essential ingredient in many examples of the conflict between quantum theory and noncontextual hidden variables (e.g., the proof of the Kochen-Specker theorem and Hardy's proof…
Quantum state-independent contextuality requires 13 rays
Adán Cabello, Matthias Kleinmann, José R. Portillo
We show that, regardless of the dimension of the Hilbert space, there exists no set of rays revealing state-independent contextuality with less than 13 rays. This implies that the…
Kochen-Specker set with seven contexts
Petr Lisonek, Piotr Badziag, Jose R. Portillo +1
The Kochen-Specker (KS) theorem is a central result in quantum theory and has applications in quantum information. Its proof requires several yes-no tests that can be grouped in co…
Basic exclusivity graphs in quantum correlations
Adan Cabello, Lars Eirik Danielsen, Antonio J. Lopez-Tarrida +1
A fundamental problem is to understand why quantum theory only violates some noncontextuality (NC) inequalities and identify the physical principles that prevent higher-than-quantu…
Experimental fully contextual correlations
Elias Amselem, Lars Eirik Danielsen, Antonio J. Lopez-Tarrida +3
Quantum correlations are contextual yet, in general, nothing prevents the existence of even more contextual correlations. We identify and test a noncontextuality inequality in whic…