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Towards a Quantum Information Theory of Hadronization: Dihadron Fragmentation and Neutral Polarization in Heavy Baryons
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abstract
We pioneer the application of quantum information theory to experimentally distinguish between classes of hadronization models. We adapt the CHSH inequality to the fragmentation of a single parton to hadron pairs, a violation of which would rule out classical dynamics of hadronization altogether. Furthermore, we apply and extend the theory of quantum contextuality and local quantum systems to the neutral polarization of a single spin-1 hadronic system, namely the light constituents of excited Sigma baryons $\Sigma^{*}_{c,b}$ formed in the fragmentation of heavy quarks.
Forward citations
Cited by 4 Pith papers
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Quantum decoherence of hyperon spin correlations in QCD hadronization
A model of quantum decoherence from string breaking explains hyperon spin correlations by linking vacuum entanglement to observed data in non-perturbative QCD.
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Hyperon spin correlations in high-energy collisions are consistent with a two-qubit depolarizing channel, from which a Lindblad master equation is derived for hadronization spin dynamics.
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Bypassing Spin-Analyzing Power Dependence for Quantum Entanglement at Colliders: A Case Study of $\Lambda\bar{\Lambda}$
An entanglement witness for J/ψ→ΛΛ̄ built from angular-correlation ratios can certify entanglement without the parity-violating decay parameters, while angle-only ratio tests are shown to fail.
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Does the Weinberg angle allow a local hidden-variable description for the leptonic decays of an entangled $ZZ$ pair?
Derives algebraic conditions under which an LHVT reproduces QFT angular correlations in ZZ leptonic decays, existing only for a unique state and restricted θ_W when w≠0.
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