Analyses of the transmission of the disorder from a disturbed environment to a spin chain

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• 作者：Lucile Aubourg (1)
  David Viennot (1)
  
  1. CNRS UMR 6213 ; Institut UTINAM ; Universit茅 de Bourgogne-Franche-Comt茅 ; Observatoire de Besan莽on ; 41bis Avenue de l鈥橭bservatoire ; BP 1615 ; 25010 ; Besan莽on Cedex ; France
  
• 关键词：Spin chain ; Heisenberg coupling ; Ising ; Z coupling ; Ising ; X coupling ; Decoherence ; Entanglement
• 刊名：Quantum Information Processing
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：14
• 期：3
• 页码：1117-1150
• 全文大小：12,295 KB
• 参考文献：1. Breuer, H.-P., Petruccione, F.: The Theory of Open Quantum Systems. Oxford University Press, New York (2002)
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Mathematics
  Engineering, general
  Computer Science, general
  Characterization and Evaluation Materials
  
• 出版者：Springer Netherlands
• ISSN：1573-1332

文摘

We study spin chains submitted to disturbed kick trains described by classical dynamical processes. The spin chains are described by Heisenberg and Ising models. We consider decoherence, entanglement and relaxation processes induced by the kick irregularity in the multipartite system (the spin chain). We show that the different couplings transmit the disorder along the chain differently and also to each spin density matrix with different efficiencies. In order to analyze and to interpret the observed effects, we use a semi-classical analysis across the Husimi distribution. It consists to consider the classical spin orientation movements. A possibility of conserving the order into the spin chain is finally analyzed.