Classicality in discrete Wigner functions
Gibbons, [Phys. Rev. A 70, 062101 (2004)] have recently defined discrete Wigner functions W to represent quantum states in a Hilbert space with finite dimension. We show that such a class of Wigner functions W can be defined so that the only pure states having non-negative W for all such functions a...
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| Autores principales: | Cormick, M. Cecilia, Paz, Juan Pablo |
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| Publicado: |
2006
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| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v73_n1_p_Cormick http://hdl.handle.net/20.500.12110/paper_10502947_v73_n1_p_Cormick |
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