Entangling power in Heisenberg spin chains shows a monotonic decrease with growing symmetry in small models, sharp dips at SU(2) and free-fermion points in finite chains, and vanishes at SU(2) points but maximizes at the free-fermion point in the thermodynamic limit for the S-matrix.
McGinnis, (2025), arXiv:2511.10559 [hep-th]
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QED scattering processes modeled as quantum maps from discrete symmetries preserve maximal entanglement for fermions and converge iterations to pure maximally entangled states.
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Entangling Power: A Probe of Symmetry and Integrability in Quantum Many-Body Systems
Entangling power in Heisenberg spin chains shows a monotonic decrease with growing symmetry in small models, sharp dips at SU(2) and free-fermion points in finite chains, and vanishes at SU(2) points but maximizes at the free-fermion point in the thermodynamic limit for the S-matrix.
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Characterizing entanglement dynamics in QED scattering processes
QED scattering processes modeled as quantum maps from discrete symmetries preserve maximal entanglement for fermions and converge iterations to pure maximally entangled states.