{ "id": "1902.08891", "version": "v1", "published": "2019-02-24T04:06:14.000Z", "updated": "2019-02-24T04:06:14.000Z", "title": "Off-diagonal Bethe Ansatz on the $so(5)$ spin chain", "authors": [ "Guang-Liang Li", "Junpeng Cao", "Panpan Xue", "Kun Hao", "Pei Sun", "Wen-Li Yang", "Kangjie Shi", "Yupeng Wang" ], "comment": "41 pages, no figure", "categories": [ "math-ph", "cond-mat.stat-mech", "hep-th", "math.MP" ], "abstract": "The $so(5)$ (i.e., $B_2$) quantum integrable spin chains with both periodic and non-diagonal boundaries are studied via the off-diagonal Bethe Ansatz method. By using the fusion technique, sufficient operator product identities (comparing to those in [1]) to determine the spectrum of the transfer matrices are derived. For the periodic case, we recover the results obtained in [1], while for the non-diagonal boundary case, a new inhomogeneous $T-Q$ relation is constructed. The present method can be directly generalized to deal with the $so(2n+1)$ (i.e., $B_n$) quantum integrable spin chains with general boundaries.", "revisions": [ { "version": "v1", "updated": "2019-02-24T04:06:14.000Z" } ], "analyses": { "keywords": [ "quantum integrable spin chains", "off-diagonal bethe ansatz method", "sufficient operator product identities", "non-diagonal boundary case", "fusion technique" ], "note": { "typesetting": "TeX", "pages": 41, "language": "en", "license": "arXiv", "status": "editable" } } }