{ "id": "0810.1839", "version": "v1", "published": "2008-10-10T09:52:46.000Z", "updated": "2008-10-10T09:52:46.000Z", "title": "Global entanglement and coherent states in an N-partite system", "authors": [ "P. Dömötör", "M. G. Benedict" ], "doi": "10.1140/epjd/e2009-00106-9", "categories": [ "quant-ph" ], "abstract": "We consider a quantum system consisting of N parts, each of which is a \"quKit\" described by a K dimensional Hilbert space. We prove that in the symmetric subspace, S, a pure state is not globally entangled, if and only if it is a coherent state. It is also shown that in the orthogonal complement all states are globally entangled.", "revisions": [ { "version": "v1", "updated": "2008-10-10T09:52:46.000Z" } ], "analyses": { "keywords": [ "coherent state", "n-partite system", "global entanglement", "dimensional hilbert space", "symmetric subspace" ], "tags": [ "journal article" ], "publication": { "journal": "European Physical Journal D", "year": 2009, "month": "Jun", "volume": 53, "number": 2, "pages": 237 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009EPJD...53..237D" } } }