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Artículo

Unified entropic measures of quantum correlations induced by local measurements

Bosyk, Gustavo MartinIcon ; Bellomo, GuidoIcon ; Zozor, Steeve; Portesi, Mariela AdelinaIcon ; Lamberti, Pedro WalterIcon
Fecha de publicación: 11/2016
Editorial: Elsevier Science
Revista: Physica A: Statistical Mechanics and its Applications
ISSN: 0378-4371
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Astronomía

Resumen

We introduce quantum correlation measures based on the minimal change in unified entropies induced by local rank-one projective measurements, divided by a factor that depends on the generalized purity of the system in the case of nonadditive entropies. In this way, we overcome the issue of the artificial increasing of the value of quantum correlation measures based on nonadditive entropies when an uncorrelated ancilla is appended to the system, without changing the computability of our entropic correlation measures with respect to the previous ones. Moreover, we recover as limiting cases the quantum correlation measures based on von Neumann and Rényi entropies (i.e., additive entropies), for which the adjustment factor becomes trivial. In addition, we distinguish between total and semiquantum correlations and obtain some inequalities between them. Finally, we obtain analytical expressions of the entropic correlation measures for typical quantum bipartite systems.
Palabras clave: Local Projective Measurements , Quantum Correlations , Quantum Unified Entropies
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/66366
URL: http://www.sciencedirect.com/science/article/pii/S037843711630406X
DOI: https://dx.doi.org/10.1016/j.physa.2016.06.131
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Citación
Bosyk, Gustavo Martin; Bellomo, Guido; Zozor, Steeve; Portesi, Mariela Adelina; Lamberti, Pedro Walter; Unified entropic measures of quantum correlations induced by local measurements; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 462; 11-2016; 930-939
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