{ "id": "2212.09511", "version": "v1", "published": "2022-12-19T14:47:46.000Z", "updated": "2022-12-19T14:47:46.000Z", "title": "Logarithmic negativity and ground-state phase diagram of the 1D antiferromagnetic spin-1 Heisenberg model with single-ion anisotropy", "authors": [ "Vladimir V. Papoyan", "Giacomo Gori", "Vladimir V. Papoyan", "Andrea Trombettoni", "Nerses Ananikian" ], "comment": "17 pages, 11 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "Ground-state entanglement properties in the 1D antiferromagnetic spin-1 Heisenberg model with external magnetic field B and single-ion anisotropy D are investigated. The logarithmic negativity for nearest and non-nearest neighbor sites on finite chains is obtained. The resulting phase diagram is discussed in the B - D plane, and a line where the energy density is independent on the size is determined and shown to end in a triple point. Finally, results for the logarithmic negativity on finite chains at finite temperature as a function of B and D are presented.", "revisions": [ { "version": "v1", "updated": "2022-12-19T14:47:46.000Z" } ], "analyses": { "keywords": [ "ground-state phase diagram", "logarithmic negativity", "1d antiferromagnetic", "heisenberg model", "single-ion anisotropy" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }