{ "id": "0806.4861", "version": "v2", "published": "2008-06-30T11:33:26.000Z", "updated": "2012-11-15T19:59:06.000Z", "title": "Total correlations and mutual information", "authors": [ "Zbigniew Walczak" ], "comment": "6 pages, 3 figures, published version", "journal": "Physics Letters A 373 (2009) 1818-1822", "doi": "10.1016/j.physleta.2009.03.047", "categories": [ "quant-ph" ], "abstract": "In quantum information theory it is generally accepted that quantum mutual information is an information-theoretic measure of total correlations of a bipartite quantum state. We argue that there exist quantum states for which quantum mutual information cannot be considered as a measure of total correlations. Moreover, for these states we propose a different way of quantifying total correlations.", "revisions": [ { "version": "v2", "updated": "2012-11-15T19:59:06.000Z" } ], "analyses": { "subjects": [ "03.67.-a", "03.65.Ta" ], "keywords": [ "quantum mutual information", "quantum information theory", "bipartite quantum state", "information-theoretic measure", "quantifying total correlations" ], "tags": [ "journal article" ], "publication": { "journal": "Physics Letters A", "year": 2009, "month": "May", "volume": 373, "number": 21, "pages": 1818 }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009PhLA..373.1818W" } } }