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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Item Type: | Pubblicazione in rivista scientifica | ||||||||||
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Title: | Partial scaling transform of multiqubit states as a criterion of separability | ||||||||||
Creators: |
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Date: | October 2006 | ||||||||||
Date Type: | Publication | ||||||||||
Identification Number: | 10.1088/0305-4470/38/48/009 | ||||||||||
Official URL: | http://www.iop.org/EJ/abstract/0305-4470/38/48/009 | ||||||||||
Journal or Publication Title: | Journal of Physics A | ||||||||||
Date: | October 2006 | ||||||||||
Volume: | 38 (2005) | ||||||||||
Page Range: | pp. 10377-10391 | ||||||||||
Uncontrolled Keywords: | Entanglement, Quantum Information | ||||||||||
Identification Number: | 10.1088/0305-4470/38/48/009 | ||||||||||
Settori scientifico-disciplinari del MIUR: | Area 02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici | ||||||||||
Date Deposited: | 07 Jun 2007 | ||||||||||
Last Modified: | 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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