{ "id": "1112.3600", "version": "v1", "published": "2011-12-15T18:40:44.000Z", "updated": "2011-12-15T18:40:44.000Z", "title": "Baxter Operators and Hamiltonians for \"nearly all\" Integrable Closed gl(n) Spin Chains", "authors": [ "Rouven Frassek", "Tomasz Lukowski", "Carlo Meneghelli", "Matthias Staudacher" ], "comment": "26 pages, 1 figure", "categories": [ "math-ph", "hep-th", "math.MP" ], "abstract": "We continue our systematic construction of Baxter Q-operators for spin chains, which is based on certain degenerate solutions of the Yang-Baxter equation. Here we generalize our approach from the fundamental representation of gl(n) to generic finite-dimensional representations in quantum space. The results equally apply to non-compact representations of highest or lowest weight type. We furthermore fill an apparent gap in the literature, and provide the nearest-neighbor Hamiltonians of the spin chains in question for all cases where the gl(n) representations are described by rectangular Young diagrams, as well as for their infinite-dimensional generalizations. They take the form of digamma functions depending on operator-valued shifted weights.", "revisions": [ { "version": "v1", "updated": "2011-12-15T18:40:44.000Z" } ], "analyses": { "keywords": [ "spin chains", "integrable closed gl", "baxter operators", "rectangular young diagrams", "lowest weight type" ], "tags": [ "journal article" ], "publication": { "doi": "10.1016/j.nuclphysb.2013.06.006" }, "note": { "typesetting": "TeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1081545, "adsabs": "2011arXiv1112.3600F" } } }