Spin-spin correlations and entanglement in elastic electron scattering from hydrogen atoms
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Abstract
In two recent papers, Blum and Lohmann (2016 Phys. Rev. Lett. 116 033201) and Lohmann et al (2016 Phys. Rev. A 94 032331), the possibility of continuously varying the degree of entanglement between an elastically scattered electron and the valence electron of quasi-one electron targets was discussed. Here we present results for elastic electron scattering from atomic hydrogen in the energy regime of 1-10 eV and the full range of scattering angles. We confirm previous calculations at very low energies, which predicted that the hydrogen target is not a promising candidate for Bell correlations through electron collisions. This finding remains unchanged in the near-resonance regime of incident electron energies just below 10 eV. In addition to the spin-correlation parameter P, we present the angle-integrated total cross section, as well as the angle-differential cross section at a few representative collision energies.
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Journal of Physics B: Atomic, Molecular and Optical Physics
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50
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224004
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Atomic, molecular and optical physics
Theoretical and computational chemistry
Science & Technology
Physical Sciences
Optics
Physics, Atomic, Molecular & Chemical
Physics
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Bartschat, K, Spin-spin correlations and entanglement in elastic electron scattering from hydrogen atoms, Journal of Physics B: Atomic, Molecular and Optical Physics, 2017, 50 (224004)