{ "id": "1404.3098", "version": "v1", "published": "2014-04-11T13:12:46.000Z", "updated": "2014-04-11T13:12:46.000Z", "title": "Kohn-Sham Theory in the Presence of Magnetic Field", "authors": [ "Andre Laestadius" ], "comment": "15 pages", "categories": [ "math-ph", "math.MP", "physics.chem-ph", "quant-ph" ], "abstract": "In the well-known Kohn-Sham theory in Density Functional Theory, a fictitious non-interacting system is introduced that has the same particle density as a system of $N$ electrons subjected to mutual Coulomb repulsion and an external electric field. For a long time, the treatment of the kinetic energy was not correct and the theory was not well-defined for $N$-representable particle densities. In the work of [Hadjisavvas and Theophilou, Phys. Rev. A, 1984, 30, 2183], a rigorous Kohn-Sham theory for $N$-representable particle densities was developed using the Levy-Lieb functional. Since a Levy-Lieb-type functional can be defined for Current Density Functional Theory formulated with the paramagnetic current density, we here develop a rigorous $N$-representable Kohn-Sham approach for interacting electrons in magnetic field. Furthermore, in the one-electron case, criteria for $N$-representable particle densities to be $v$-representable are given.", "revisions": [ { "version": "v1", "updated": "2014-04-11T13:12:46.000Z" } ], "analyses": { "keywords": [ "magnetic field", "particle density", "representable particle densities", "well-known kohn-sham theory", "current density functional theory" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1404.3098L" } } }