ConteXtuAlity: an open source Python package for contextuality

arXiv:2609.17294 · quant-ph · Submitted 2026-09-15 · Read on arXiv

quant-ph

Submitted: 2026-09-15

Updated: 2026-09-15

Terminology

• Contextual Fraction — 23× in this paper
• Signalling Fraction — 22× in this paper
• Benchmark — 18× in this paper · explained in 2 episodes
• Core — 2× in this paper · explained in 2 episodes
• Objective Function — 2× in this paper · explained in 2 episodes
• Abstraction — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 4 episodes
• Entanglement — 1× in this paper · explained in 4 episodes
• Hypergraph — 1× in this paper · explained in 2 episodes

Sources

• QuTiP 5: The Quantum Toolbox in Python
• The contextual fraction as a measure of contextuality
• A linear program for testing nonclassicality and an open-source implementation
• (Non-)Contextuality of Physical Theories as an Axiom
• Contextuality-by-Default 2.0: Systems with Binary Random Variables
• Contextual advantage for state discrimination
• Deriving robust noncontextuality inequalities from algebraic proofs of the Kochen-Specker theorem: the Peres-Mermin square

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