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: | Autore Email Lupo, Cosmo lupo@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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