3 papers
quant-ph2024
An abstract structure determines the contextuality degree of observable-based Kochen-Specker proofs
Axel Muller, Alain Giorgetti
This article delves into the concept of quantum contextuality, specifically focusing on proofs of the Kochen-Specker theorem obtained by assigning Pauli observables to hypergraph v…
quant-ph2024
A new heuristic approach for contextuality degree estimates and its four- to six-qubit portrayals
Axel Muller, Metod Saniga, Alain Giorgetti +2
We introduce and describe a new heuristic method for finding an upper bound on the degree of contextuality and the corresponding unsatisfied part of a quantum contextual configurat…
quant-ph2023
Hexagons govern three-qubit contextuality
Metod Saniga, Frédéric Holweck, Colm Kelleher +3
Split Cayley hexagons of order two are distinguished finite geometries living in the three-qubit symplectic polar space in two different forms, called classical and skew. Although…