Geometrical Perspective on Spin-Lattice Density-Functional Theory
Materials Science
2024-10-22 v2 Chemical Physics
Quantum Physics
Abstract
A recently developed viewpoint on the fundamentals of density-functional theory for finite interacting spin-lattice systems that centers around the notion of degeneracy regions is presented. It allows for an entirely geometrical description of the Hohenberg-Kohn theorem and v-representability. The phenomena receive exemplification by an Anderson impurity model and other small-lattice examples. The case of adiabatic change and the time-dependent setting are examined as well.
Keywords
Cite
@article{arxiv.2407.20260,
title = {Geometrical Perspective on Spin-Lattice Density-Functional Theory},
author = {Markus Penz and Robert van Leeuwen},
journal= {arXiv preprint arXiv:2407.20260},
year = {2024}
}