title: Generalized nonadditive entropies and quantum entanglement.
abstract: We examine the inference of quantum density operators from incomplete information by means of the maximization of general nonadditive entropic forms. Extended thermodynamic relations are given. When applied to a bipartite spin 1 / 2 system, the formalism allows one to avoid fake entanglement for data based on the Bell-Clauser-Horne-Shimony-Holt observable, and, in general, on any set of Bell constraints. Particular results obtained with the Tsallis entropy and with an introduced exponential entropic form are also discussed.
authors: Departamento de Física, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata, Argentina.
authors: N
authors: N
authors: Canosa
authors: R
authors: R
authors: Rossignoli