Photon-nucleon entanglement in Compton scattering at low and high energies
This paper investigates spin-spin entanglement in Compton scattering across low and high energy regimes, establishing a no-go theorem for real amplitudes in unpolarized scattering and demonstrating that polarized scattering off nucleons produces diverse maximally entangled states sensitive to electromagnetic polarizabilities, thereby proposing entanglement as a novel probe for nucleon structure.