Kochen-specker contextuality

C Budroni, A Cabello, O Gühne, M Kleinmann… - Reviews of Modern …, 2022 - APS
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In
short, it states that quantum mechanics is in conflict with classical models in which the result …

Graph-theoretic approach to quantum correlations

A Cabello, S Severini, A Winter - Physical review letters, 2014 - APS
Correlations in Bell and noncontextuality inequalities can be expressed as a positive linear
combination of probabilities of events. Exclusive events can be represented as adjacent …

Experimental non-classicality of an indivisible quantum system

R Lapkiewicz, P Li, C Schaeff, NK Langford… - Nature, 2011 - nature.com
In contrast to classical physics, quantum theory demands that not all properties can be
simultaneously well defined; the Heisenberg uncertainty principle is a manifestation of this …

State-independent proof of Kochen-Specker theorem with 13 rays

S Yu, CH Oh - Physical review letters, 2012 - APS
Quantum contextuality, as proved by Kochen and Specker, and also by Bell, should manifest
itself in any state in any system with more than two distinguishable states and recently has …

An experimental test of noncontextuality without unphysical idealizations

MD Mazurek, MF Pusey, R Kunjwal, KJ Resch… - Nature …, 2016 - nature.com
To make precise the sense in which nature fails to respect classical physics, one requires a
formal notion of classicality. Ideally, such a notion should be defined operationally, so that it …

Simplest bipartite perfect quantum strategies

A Cabello - Physical Review Letters, 2025 - APS
A bipartite perfect quantum strategy (BPQS) allows two players who cannot communicate
with each other to always win a nonlocal game. BPQSs are rare but fundamental in light of …

Quantum contextuality provides communication complexity advantage

S Gupta, D Saha, ZP Xu, A Cabello, AS Majumdar - Physical Review Letters, 2023 - APS
Despite the conceptual importance of contextuality in quantum mechanics, there is a hitherto
limited number of applications requiring contextuality but not entanglement. Here, we show …

Simple explanation of the quantum violation of a fundamental inequality

A Cabello - Physical review letters, 2013 - APS
We show that the maximum quantum violation of the Klyachko-Can-Binicioğlu-Shumovsky
(KCBS) inequality is exactly the maximum value satisfying the following principle: The sum …

Philosophy in Science: Can philosophers of science permeate through science and produce scientific knowledge?

T Pradeu, M Lemoine, M Khelfaoui… - The British Journal for …, 2024 - journals.uchicago.edu
Most philosophers of science do philosophy 'on'science. By contrast, others do philosophy
'in'science (PinS), that is, they use philosophical tools to address scientific problems and to …

Converting contextuality into nonlocality

A Cabello - Physical Review Letters, 2021 - APS
We introduce a general method which converts, in a unified way, any form of quantum
contextuality, including any form of state-dependent contextuality, into a quantum violation of …