{ "id": "1601.07808", "version": "v1", "published": "2016-01-28T15:54:00.000Z", "updated": "2016-01-28T15:54:00.000Z", "title": "Characterizing the dynamical semigroups that do not decrease a quantum entropy", "authors": [ "Paolo Aniello", "Dariusz Chruscinski" ], "comment": "24 pages", "categories": [ "quant-ph", "math-ph", "math.MP" ], "abstract": "In finite dimensions, we provide characterizations of the quantum dynamical semigroups that do not decrease the von Neumann, the Tsallis and the Renyi entropies, as well as a family of functions of density operators strictly related to the Schatten norms. A few remarkable consequences --- in particular, a description of the associated infinitesimal generators --- are derived, and some significant examples are discussed. Extensions of these results to semigroups of trace-preserving positive (i.e., not necessarily completely positive) maps and to a more general class of quantum entropies are also considered.", "revisions": [ { "version": "v1", "updated": "2016-01-28T15:54:00.000Z" } ], "analyses": { "keywords": [ "quantum entropy", "density operators", "general class", "finite dimensions", "significant examples" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160107808A" } } }