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Título: | Information encoding of a qubit into a multilevel environment |
Autor: | Pérez Cañellas, Armando CSIC ORCID | Fecha de publicación: | 20-may-2010 | Editor: | American Physical Society | Citación: | Physical Review - Section A - Atomic Molecular and Optical Physics 81 (5): 052326 (2010) | Resumen: | I consider the interaction of a small quantum system (a qubit) with a structured environment consisting of many levels. The qubit will experience a decoherence process, which implies that part of its initial information will be encoded into correlations between system and environment. I investigate how this information is distributed on a given subset of levels as a function of its size, using the mutual information between both entities, in the spirit of the partial-information plots studied by Zurek and co-workers. In this case we can observe some differences, which arise from the fact that I am partitioning just one quantum system and not a collection of them. However, some similar features, like redundancy (in the sense that a given amount of information is shared by many subsets), which increases with the size of the environment, are also found here. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevA.81.052326 | URI: | http://hdl.handle.net/10261/26472 | DOI: | 10.1103/PhysRevA.81.052326 | ISSN: | 1050-2947 |
Aparece en las colecciones: | (IFIC) Artículos |
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