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Departamento de Gravitación y Teoría de CamposSeminarios 2011 |
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Instituto de Ciencias Nucleares, UNAM |
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Departamento de Gravitación y Teoría de CamposSeminarios 2011 |
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Instituto de Ciencias Nucleares, UNAM |
Jueves 24 de Noviembre, a las 17:00 hrs en la sala de seminarios del ICN
Carlos Pineda (IF, UNAM)
Non-Markovian behavior of small and large complex quantum systems
| The channel induced by a complex system interacting strongly with a qubit is calculated exactly under the assumption of randomness of its eigenvectors. The resulting channel is represented as an isotropic time dependent oscillation of the Bloch ball, leading to non-Markovian behavior, even in the limit of infinite environments. Two contributions are identified: one due to the density of states and the other due to correlations in the spectrum. Prototype examples, one for chaotic and the other for regular dynamics are explored. |
