{ "id": "1007.4252", "version": "v1", "published": "2010-07-24T07:23:27.000Z", "updated": "2010-07-24T07:23:27.000Z", "title": "On the non-Abelian monopoles on the background of spaces with constant curvature", "authors": [ "V. Red'kov" ], "comment": "82 pages. Invited talk to BGL-7: International Conference on Non-Euclidean Geometry and its applications. 5 -- 9 July 2010, Kluj-Napoca, Romania", "categories": [ "math-ph", "math.MP", "quant-ph" ], "abstract": "Procedure of constructing the BPS solutions in SO(3) model on the background of 4D-space-time with the spatial part as a model of constant curvature: Euclid, Riemann, Lobachevsky, is reexamined. It is shown that among possible solutions$W^{k}_{\\alpha}(x)$ there exist just three ones which in a one-to-one correspondence can be associated with respective geometries, the known non-singular BPS-solution in the flat Minkowski space can be understood as a result of somewhat artificial combining the Minkowski space model with a possibility naturally linked up with the Loba\\-chevsky geometry. A special solution $W^{k}_{(triv)\\alpha} (x)$ in three spaces is described, which can be understood as result of embedding the Abelian monopole potential into the non-Abelian model. The problem of Dirac fermion doublet in the~external BPS-monopole potential in these curved spaces is examined on the base of generally covariant tetrad formalism by Tetrode-Weyl-Fock-Ivanenko. In the frame of spherical coordinates, and (Schr\\\"{o}dinger's) tetrad basis, and special unitary basis in isotopic space, an analog of Schwin\\-ger's one in Abelian case, there arises a Schr\\\"{o}dinger's structure for extended operator ${\\bf J} = {\\bf l} + {\\bf S} + {\\bf T}$. Correspondingly, instead of monopole harmonics, the language of conventional Wigner $D$-functions is used, radial equations are founds in all three models, and solved in the case of trivial W^{k}_{(triv)\\alpha} (x)$ in Lobachevsky and Riemann models. In the particular case $W^{k}_{(triv)\\alpha} (x)$, the~doublet-monopole Hamiltonian is invariant under additional one-para\\-metric group. This symmetry results in a freedom in choosing a~discrete operator $\\hat{N}_{A}$ entering the complete set of quantum variables.", "revisions": [ { "version": "v1", "updated": "2010-07-24T07:23:27.000Z" } ], "analyses": { "subjects": [ "G.1" ], "keywords": [ "constant curvature", "non-abelian monopoles", "background", "flat minkowski space", "covariant tetrad formalism" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 82, "language": "en", "license": "arXiv", "status": "editable", "inspire": 863208, "adsabs": "2010arXiv1007.4252R" } } }