{ "id": "2405.02239", "version": "v1", "published": "2024-05-03T16:50:06.000Z", "updated": "2024-05-03T16:50:06.000Z", "title": "Supersymmetric Quantum Mechanics on a noncommutative plane through the lens of deformation quantization", "authors": [ "Md. Rafsanjany Jim", "S. Hasibul Hassan Chowdhury" ], "comment": "33 pages, no figure", "categories": [ "math-ph", "hep-th", "math.MP" ], "abstract": "A gauge invariant mathematical formalism based on deformation quantization is outlined to model an $\\mathcal{N}=2$ supersymmetric system of a spin $1/2$ charged particle placed in a nocommutative plane under the influence of a vertical uniform magnetic field. The noncommutative involutive algebra $(C^{\\infty}(\\mathbb{R}^{2})[[\\vartheta]],*^r)$ of formal power series in $\\vartheta$ with coefficients in the commutative ring $C^{\\infty}(\\mathbb{R}^{2})$ was employed to construct the relevant observables, viz., SUSY Hamiltonian $H$, supercharge operator $Q$ and its adjoint $Q^{\\dag}$ all belonging to the $2\\times 2$ matrix algebra $\\mathcal{M}_{2}(C^{\\infty}(\\mathbb{R}^{2})[[\\vartheta]],*^r)$ with the help of a family of gauge-equivalent star products $*^{r}$. The energy eigenvalues of the SUSY Hamiltonian all turned out to be independent of not only the gauge parameter $r$ but also the noncommutativity parameter $\\vartheta$. The nontrivial Fermionic ground state was subsequently computed associated with the zero energy which indicates that supersymmetry remains unbroken in all orders of $\\vartheta$. The Witten index for the noncommutative SUSY Landau problem turns out to be $-1$ corroborating the fact that there is no broken supersymmetry for the model we are considering.", "revisions": [ { "version": "v1", "updated": "2024-05-03T16:50:06.000Z" } ], "analyses": { "subjects": [ "53D55", "46L65", "46L87", "81Q60", "81R60", "20C25" ], "keywords": [ "supersymmetric quantum mechanics", "deformation quantization", "noncommutative plane", "noncommutative susy landau problem turns", "nontrivial fermionic ground state" ], "note": { "typesetting": "TeX", "pages": 33, "language": "en", "license": "arXiv", "status": "editable" } } }