Semi-classical limit of confined fermionic systems in homogeneous magnetic fields

preprint2019arXivOpen access

Abstract

We consider a system of N N interacting fermions in R3 \mathbb{R}^3 confined by an external potential and in the presence of a homogeneous magnetic field. The intensity of the interaction has the mean-field scaling 1/N 1/N . With a semi-classical parameter ℏ∼N−1/3 \hbar \sim N^{-1/3} , we prove convergence in the large N N limit to the appropriate Magnetic Thomas-Fermi type model with various strength scalings of the magnetic field.

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