Lupo, Cosmo and Man'Ko, Volodya and Marmo, Giuseppe and Sudarshan, E. C. G. (2006) Partial scaling transform of multiqubit states as a criterion of separability. [Pubblicazione in rivista scientifica]

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Tipologia del documento: Pubblicazione in rivista scientifica
Titolo: Partial scaling transform of multiqubit states as a criterion of separability
Autori:
AutoreEmail
Lupo, Cosmolupo@na.infn.it
Man'Ko, Volodya[non definito]
Marmo, Giuseppe[non definito]
Sudarshan, E. C. G.[non definito]
Data: Ottobre 2006
Tipo di data: Pubblicazione
Numero identificativo: 10.1088/0305-4470/38/48/009
URL ufficiale: http://www.iop.org/EJ/abstract/0305-4470/38/48/009
Titolo del periodico: Journal of Physics A
Data: Ottobre 2006
Volume: 38 (2005)
Intervallo di pagine: pp. 10377-10391
Parole chiave: Entanglement, Quantum Information
Numero identificativo: 10.1088/0305-4470/38/48/009
Settori scientifico-disciplinari del MIUR: Area 02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici
Depositato il: 07 Giu 2007
Ultima modifica: 30 Apr 2014 19:22
URI: http://www.fedoa.unina.it/id/eprint/403

Abstract

The partial scaling transform of the density matrix for multiqubit states is introduced to detect entanglement of the quantum state. The transform contains partial transposition as a special case. The scaling transform corresponds to partial time scaling of subsystem (or partial Planck constant scaling) which was used to formulate recently separability criterion for continous variables. A measure of entanglement which is a generalization of negativity measure is introduced being based on tomographic probability description of spin states.

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