Artículo
Some features of the state-space trajectories followed by robust entangled four-qubit states during decoherence
Fecha de publicación:
04/2010
Editorial:
World Scientific
Revista:
International Journal Of Quantum Information
ISSN:
0219-7499
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In a recent work (Borras et al., Phys. Rev. A 79 (2009) 022108), we have determined, for various decoherence channels, four-qubit initial states exhibiting the most robust possible entanglement. Here, we explore some geometrical features of the trajectories in state space generated by the decoherence process, connecting the initially robust pure state with the completely decohered mixed state obtained at the end of the evolution. We characterize these trajectories by recourse to the distance between the concomitant time-dependent mixed state and different reference states.
Palabras clave:
DECOHERENCE
,
ENTANGLEMENT
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Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Majtey, Ana Paula; Borras, A.; Plastino, Ángel Ricardo; Casas, M.; Plastino, Ángel Ricardo; Some features of the state-space trajectories followed by robust entangled four-qubit states during decoherence; World Scientific; International Journal Of Quantum Information; 8; 3; 4-2010; 505-515
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