{ "id": "1610.09663", "version": "v1", "published": "2016-10-30T15:33:14.000Z", "updated": "2016-10-30T15:33:14.000Z", "title": "Hermitian and Gauge-Covariant Hamiltonians for a particle in a magnetic field on Cylindrical and Spherical Surfaces", "authors": [ "M. S. Shikakhwa", "N. Chair" ], "comment": "8 pages, no figures", "categories": [ "quant-ph", "cond-mat.mes-hall" ], "abstract": "We construct the Hermitian Schr\\\"{o}dinger Hamiltonian of spin-less as well as the gauge-covariant Pauli Hamiltonian of spin one-half particles in a magnetic field that are confined to cylindrical and spherical surfaces. The approach does not require the use of involved differential-geometrical methods and is intuitive and physical, relying on the general requirements of Hermicity and gauge-covariance. The surfaces are embedded in the full three-dimensional space and confinement to the surfaces is achieved by strong radial potentials. We identify the Hermitian and gauge-covariant (in the presence of a magnetic field) physical radial momentum in each case and set it to zero upon confinement to the surfaces . The resulting surface Hamiltonians are seen to be automatically Hermitian and gauge-covariant. The well-known geometrical kinetic energy also emerges naturally.", "revisions": [ { "version": "v1", "updated": "2016-10-30T15:33:14.000Z" } ], "analyses": { "keywords": [ "magnetic field", "spherical surfaces", "gauge-covariant hamiltonians", "gauge-covariant pauli hamiltonian", "spin one-half particles" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }