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Scattering and momentum space entanglement

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arxiv 1612.08858 v1 pith:MKF5XULN submitted 2016-12-28 hep-th hep-phquant-ph

Gianluca Grignani , Gordon W. Semenoff This is my paper · ORCID
classification hep-thhep-phquant-ph
keywords momentumentanglementscatteringspaceabovebelowcutoffderive
verification ladder T0 review T1 audit T2 compute T3 formal

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We derive a formula for the entanglement entropy of two regions in momentum space that is generated by the scattering of weakly interacting scalar particles. We discuss an example where weak interactions entangle momentum scales above and below an infrared cutoff.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  3. Entanglement in Elastic and Inelastic Two-particle Scatterings at High Energy

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    In proton-neutron scattering, the inelastic charge-exchange channel produces more entanglement entropy in transverse momentum than the elastic channel, according to a new S-matrix derivation tied to measured cross sections.

  4. Spin versus Magic: Lessons from Gluon and Graviton Scattering

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    For 2 to 2 scattering of massless spin-1/2 to spin-2 particles, the averaged generated magic decreases monotonically with spin, with maxima well below the two-qubit upper bound.

  5. Entropy from scattering in weakly interacting systems

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    For weak scattering, the von Neumann entropy of a subsystem increases whenever the initial local state has a zero eigenvalue and the full state commutes with the local spectral projectors, provided scattering connects...

  6. Subleading soft radiation during scattering of dressed states in QED

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    With subleading-corrected Faddeev-Kulish dressing, tree-level QED bremsstrahlung below the dressing scale vanishes, and elastic dressed amplitudes equal the infrared-finite part of Fock amplitudes.

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