{ "id": "hep-th/0401041", "version": "v2", "published": "2004-01-07T20:40:46.000Z", "updated": "2004-03-31T07:07:29.000Z", "title": "Integrable Open Spin Chains in Defect Conformal Field Theory", "authors": [ "Oliver DeWolfe", "Nelia Mann" ], "comment": "26 pages, LaTeX. v2: references added, typos corrected", "journal": "JHEP 0404 (2004) 035", "doi": "10.1088/1126-6708/2004/04/035", "categories": [ "hep-th" ], "abstract": "We demonstrate that the one-loop dilatation generator for the scalar sector of a certain perturbation of N=4 Super Yang-Mills with fundamentals is the Hamiltonian of an integrable spin chain with open boundary conditions. The theory is a supersymmetric defect conformal field theory (dCFT) with the fundamentals in hypermultiplets confined to a codimension one defect. We obtain a K-matrix satisfying a suitably generalized form of the boundary Yang-Baxter equation, study the Bethe ansatz equations and demonstrate how Dirichlet and Neumann boundary conditions arise in field theory, and match to existing results in the plane wave limit.", "revisions": [ { "version": "v2", "updated": "2004-03-31T07:07:29.000Z" } ], "analyses": { "keywords": [ "integrable open spin chains", "supersymmetric defect conformal field theory", "neumann boundary conditions arise", "bethe ansatz equations", "boundary yang-baxter equation" ], "tags": [ "journal article" ], "publication": { "publisher": "IOP", "journal": "Journal of High Energy Physics", "year": 2004, "month": "Apr", "volume": 2004, "number": 4, "pages": "035" }, "note": { "typesetting": "LaTeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable", "inspire": 642285, "adsabs": "2004JHEP...04..035D" } } }