{ "id": "quant-ph/0204042", "version": "v3", "published": "2002-04-08T12:34:16.000Z", "updated": "2002-07-01T14:06:10.000Z", "title": "Simple diamagnetic monotonicities for Schroedinger operators with inhomogeneous magnetic fields of constant direction", "authors": [ "Hajo Leschke", "Rainer Ruder", "Simone Warzel" ], "journal": "Journal of Physics A: Mathematical and General 35 (2002) 5701-5709", "doi": "10.1088/0305-4470/35/27/311", "categories": [ "quant-ph", "math-ph", "math.MP" ], "abstract": "Under certain simplifying conditions we detect monotonicity properties of the ground-state energy and the canonical-equilibrium density matrix of a spinless charged particle in the Euclidean plane subject to a perpendicular, possibly inhomogeneous magnetic field and an additional scalar potential. Firstly, we point out a simple condition warranting that the ground-state energy does not decrease when the magnetic field and/or the potential is increased pointwise. Secondly, we consider the case in which both the magnetic field and the potential are constant along one direction in the plane and give a genuine path-integral argument for corresponding monotonicities of the density-matrix diagonal and the absolute value of certain off-diagonals. Our results complement to some degree results of M. Loss and B. Thaller [Commun. Math. Phys. 186 (1997) 95] and L. Erdos [J. Math. Phys. 38 (1997) 1289].", "revisions": [ { "version": "v3", "updated": "2002-07-01T14:06:10.000Z" } ], "analyses": { "keywords": [ "inhomogeneous magnetic field", "simple diamagnetic monotonicities", "schroedinger operators", "constant direction", "ground-state energy" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }