One-qubit purity in terms of the discrete Wigner transform
An explanation and an illustration of the meaning of a discrete phase-space is given. The class of a discrete Wigner transform (DWT) for the specific case of a one-qubit state is introduced. We derive the one-qubit state formalism around its formulation in terms of the DWT in detail. A novel structu...
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | México |
| Institución: | Universidad Autónoma del Estado de México |
| Repositorio: | Redalyc-UAEMEX |
| OAI Identifier: | oai:redalyc.org:10461231006 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=10461231006 https://www.redalyc.org/journal/104/10461231006/ https://www.redalyc.org/journal/104/10461231006/html/ https://www.redalyc.org/journal/104/10461231006/10461231006.epub https://www.redalyc.org/journal/104/10461231006/movil https://doi.org/10.30878/ces.v27n1a9 |
| Access Level: | acceso abierto |
| Palabra clave: | Multidisciplinarias (Ciencias Sociales) purity Hilbert space unbiased bases Discrete phase space discrete Wigner transform |
| Sumario: | An explanation and an illustration of the meaning of a discrete phase-space is given. The class of a discrete Wigner transform (DWT) for the specific case of a one-qubit state is introduced. We derive the one-qubit state formalism around its formulation in terms of the DWT in detail. A novel structure of a one-qubit purity in terms of the DWT is introduced. We find a criterion for stating when a one-qubit state is either mixed or pure. |
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