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Effective quantum dynamics for magnetic fermions

Mathematical Physics 2024-09-25 v2 math.MP

Abstract

We show how to derive an effective nonlinear dynamics, described by the Hartree-Fock equations, for fermionic quantum particles confined to a two-dimensional box and in presence of an external, uniform magnetic field. The derivation invokes the Dirac-Frenkel principle. We discuss the validity of this effective description with respect to the many-body Schr\"odinger dynamics for small times and for weak interactions, and also in regards to the number of particles.

Keywords

Cite

@article{arxiv.2406.15041,
  title  = {Effective quantum dynamics for magnetic fermions},
  author = {Margherita Ferrero and Domenico Monaco},
  journal= {arXiv preprint arXiv:2406.15041},
  year   = {2024}
}

Comments

31 pages, no figures. v2: matches published version on Open Communications in Nonlinear Mathematical Physics

R2 v1 2026-06-28T17:14:35.126Z