{ "id": "2204.12842", "version": "v1", "published": "2022-04-27T11:01:01.000Z", "updated": "2022-04-27T11:01:01.000Z", "title": "$2$-Spinors via Linear Algebra", "authors": [ "Roger Plymen" ], "comment": "14 pages", "categories": [ "math-ph", "gr-qc", "math.MP" ], "abstract": "We give a streamlined account of $2$-spinors, up to and including the Dirac equation, using little more than the resources of linear algebra. We prove that the Dirac bundle is isomorphic to the associated bundles $\\mathrm{SL}_2(\\mathbb{C}) \\times_{\\mathrm{SU}_2} S$ and $\\mathrm{SL}_2(\\mathbb{C}) \\times_{\\mathrm{SU}_2} \\bar{S}$. A solution of the Dirac equation determines a pair of conjugate $2$-spinor fields over the mass shell $X_m$.", "revisions": [ { "version": "v1", "updated": "2022-04-27T11:01:01.000Z" } ], "analyses": { "keywords": [ "linear algebra", "dirac equation determines", "dirac bundle", "mass shell", "spinor fields" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }