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arXiv · 2610.38676

Modified Scattering for Infinite-Rank Hartree--Fock Equations

Masaki Kawamoto·Jinyeop Lee·Changhun Yang·Chanjin You
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Abstract

We study the long-time behavior of the Hartree--Fock equation with Coulomb interaction in dimensions $d\geq2$ for small initial density matrices of possibly infinite rank. We prove global well-posedness and modified scattering governed by a resonant Hartree-Fock equation. Our approach is based on the half-density formulation and a final-state construction for the resonant dynamics. We also characterize the stationary states of the resonant Hartree--Fock equation and prove that ordinary linear scattering fails when the initial density matrix has rank at least two. These results extend long-range modified scattering to genuinely operator-valued infinite-rank Hartree-Fock evolution. Despite cancellation between the direct and exchange terms, the long-range effect persists, with resonant dynamics evolving on the same logarithmic time scale as in the Hartree equation.

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Masaki Kawamoto, Jinyeop Lee, Changhun Yang, Chanjin You. 2026-10-28. Modified Scattering for Infinite-Rank Hartree--Fock Equations. https://arxiv.org/abs/2610.38676

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