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Author

Yoshitaka Hatta

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Preprint Sep 2026

Spin-spin entanglement at high energy

Spin correlations offer a quantum-information perspective on the partonic final states produced in high-energy scattering. We discuss the spin-density matrix of a heavy quark-antiquark pair in two complementary small-$x$ processes. In coherent diffractive production, color-singlet exchange enforces an unusually strong...

M. Fucilla, Yoshitaka Hatta, Bo-Wen Xiao · 0 citations

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