Artículo
Comment on Quantum discord through the generalized entropy in bipartite quantum states
Fecha de publicación:
11/2014
Editorial:
Springer
Revista:
European Physical Journal D
ISSN:
1434-6060
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In [X.-W. Hou, Z.-P. Huang, S. Chen, Eur. Phys. J. D 68, 87 (2014)], Hou etal. present, using Tsallis' entropy, possible generalizations of the quantum discord measure, finding original results. As for the mutual informations and discord, we show here that these two types of quantifiers can take negative values. In the two qubits instance we further determine in which regions they are non-negative. Additionally, we study alternative generalizations on the basis of Rényi entropies.
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Bellomo, Guido; Plastino, Ángel Ricardo; Majtey, Ana Paula; Plastino, Ángel Ricardo; Comment on Quantum discord through the generalized entropy in bipartite quantum states; Springer; European Physical Journal D; 68; 11; 11-2014; 337-340
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