{ "id": "2302.11842", "version": "v1", "published": "2023-02-23T08:13:00.000Z", "updated": "2023-02-23T08:13:00.000Z", "title": "Bethe vectors and recurrence relations for twisted Yangian based models", "authors": [ "Vidas Regelskis" ], "comment": "25 pages", "categories": [ "math-ph", "hep-th", "math.MP", "nlin.SI" ], "abstract": "We study Olshanski twisted Yangian based models, known as one-dimensional \"soliton non-preserving\" open spin chains, by means of the algebraic Bethe ansatz. The even case, when the underlying bulk Lie algebra is $\\mathfrak{gl}_{2n}$, was studied in arXiv:1710.08409. In the present work, we focus on the odd case, when the underlying bulk Lie algebra is $\\mathfrak{gl}_{2n+1}$. We present a more symmetric form of the trace formula for Bethe vectors. We use the composite model approach and $Y(\\mathfrak{gl}_n)$-type recurrence relations to obtain recurrence relations for twisted Yangian based Bethe vectors, for both even and odd cases.", "revisions": [ { "version": "v1", "updated": "2023-02-23T08:13:00.000Z" } ], "analyses": { "subjects": [ "82B23", "17B37" ], "keywords": [ "bethe vectors", "bulk lie algebra", "odd case", "study olshanski twisted yangian", "type recurrence relations" ], "note": { "typesetting": "TeX", "pages": 25, "language": "en", "license": "arXiv", "status": "editable" } } }