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This paper proposes a rigorous framework for applying Bell-type inequalities to flavor operators within the Standard Model's collider environment. By treating fundamental interactions as measurement settings, it demonstrates that quantum incompatibility in particle physics arises from algebraic structures rather than kinematic correlations or exotic dynamics. The work clarifies how entanglement diagnostics can be tested with experimental data while defining the specific scope and limitations of Bell reasoning in high-energy phenomenology.
Gedanken Experiments of Entanglement in Particle Physics: Interactions, Operators and Bell Inequalities in Flavor Space
arXiv:2512.23855v2 Announce Type: replace-cross Abstract: In this article we explore ideas from quantum entanglement which can be meaningfully formulated and tested in the collider environment. We propose Bell-type inequalities as operator-level diagnostics of quantum incompatibility in particle-physics systems. We construct flavor operators associated with mass identification, flavor change, and charged-current weak mixing which arise from fundamental interactions in the Standard Model. We treat these interactions as alternative measurement settings in a Gendanken experiment. For entangled two-particle states, these operators generate nontrivial correlations that violate Bell-type bounds, excluding non-contextual local descriptions under the stated assumptions. These violations arise from the algebraic structure of the operators rather than from kinematic correlations or exotic dynamics. We discuss how the predicted correlation patterns may be probed with experimental data, clarifying the scope and limitations of Bell-type reasoning in particle physics.
Abstract:In this article we explore ideas from quantum entanglement which can be meaningfully formulated and tested in the collider environment. We propose Bell-type inequalities as operator-level diagnostics of quantum incompatibility in particle-physics systems. We construct flavor operators associated with mass identification, flavor change, and charged-current weak mixing which arise from fundamental interactions in the Standard Model. We treat these interactions as alternative measurement settings in a Gendanken experiment. For entangled two-particle states, these operators generate nontrivial correlations that violate Bell-type bounds, excluding non-contextual local descriptions under the stated assumptions. These violations arise from the algebraic structure of the operators rather than from kinematic correlations or exotic dynamics. We discuss how the predicted correlation patterns may be probed with experimental data, clarifying the scope and limitations of Bell-type reasoning in particle physics.
arXiv:2512.23855 [hep-ph]
(or arXiv:2512.23855v2 [hep-ph] for this version)
Phys. Rev. D 114, 013012; Published 27 July, 2026
https://doi.org/10.1103/cm6s-3ztv DOI(s) linking to related resources
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