dorsal/arxiv
View SchemaThe quantum superalgebra $U_q[osp(1/2n)]$: deformed para-Bose operators and root of unity representations
| Authors | T. D. Palev, J. Van der Jeugt |
|---|---|
| Categories | |
| ArXiv ID | q-alg/9501020 |
| URL | https://arxiv.org/abs/q-alg/9501020 |
| DOI | 10.1088/0305-4470/28/9/019 |
| Journal | J.Phys. A28 (1995) 2605 |
Abstract
We recall the relation between the Lie superalgebra $osp(1/2n)$ and para-Bose operators. The quantum superalgebra $U_q[osp(1/2n)]$, defined as usual in terms of its Chevalley generators, is shown to be isomorphic to an associative algebra generated by so-called pre-oscillator operators satisfying a number of relations. From these relations, and the analogue with the non-deformed case, one can interpret these pre-oscillator operators as deformed para-Bose operators. Some consequences for $U_q[osp(1/2n)]$ (Cartan-Weyl basis, Poincar\'e-Birkhoff-Witt basis) and its Hopf subalgebra $U_q[gl(n)]$ are pointed out. Finally, using a realization in terms of ``$q$-commuting'' $q$-bosons, we construct an irreducible finite-dimensional unitary Fock representation of $U_q[osp(1/2n)]$ and its decomposition in terms of $U_q[gl(n)]$ representations when $q$ is a root of unity.
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"abstract": "We recall the relation between the Lie superalgebra $osp(1/2n)$ and para-Bose\noperators. The quantum superalgebra $U_q[osp(1/2n)]$, defined as usual in terms\nof its Chevalley generators, is shown to be isomorphic to an associative\nalgebra generated by so-called pre-oscillator operators satisfying a number of\nrelations. From these relations, and the analogue with the non-deformed case,\none can interpret these pre-oscillator operators as deformed para-Bose\noperators. Some consequences for $U_q[osp(1/2n)]$ (Cartan-Weyl basis,\nPoincar\\\u0027e-Birkhoff-Witt basis) and its Hopf subalgebra $U_q[gl(n)]$ are\npointed out. Finally, using a realization in terms of ``$q$-commuting\u0027\u0027\n$q$-bosons, we construct an irreducible finite-dimensional unitary Fock\nrepresentation of $U_q[osp(1/2n)]$ and its decomposition in terms of\n$U_q[gl(n)]$ representations when $q$ is a root of unity.",
"arxiv_id": "q-alg/9501020",
"authors": [
"T. D. Palev",
"J. Van der Jeugt"
],
"categories": [
"q-alg",
"math.QA"
],
"doi": "10.1088/0305-4470/28/9/019",
"journal_ref": "J.Phys. A28 (1995) 2605",
"title": "The quantum superalgebra $U_q[osp(1/2n)]$: deformed para-Bose operators and root of unity representations",
"url": "https://arxiv.org/abs/q-alg/9501020"
},
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