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Quantum speed limit and a signal of quantum criticality
We study the quantum speed limit time (QSLT) of a coupled system consisting of a central spin and its surrounding environment, and the environment is described by a general XY spin-chain model. For initial pure state, we find that the local anomalous enhancement of the QSLT occurs near the critical...
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| Publicado en: | Sci Rep |
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| Autores principales: | , , , |
| Formato: | Artigo |
| Lenguaje: | Inglês |
| Publicado: |
Nature Publishing Group
2016
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| Materias: | |
| Acceso en línea: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4725993/ https://ncbi.nlm.nih.gov/pubmed/26782296 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep19308 |
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