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Entanglement dynamics of n-qubit states in a hierarchical environment

  • Xiao San Ma
  • Mu-Tian Cheng
  • Qiao Ying
  • Xian Shan Huang
Regular Article
  • 3 Downloads
Part of the following topical collections:
  1. Topical Issue: Quantum Correlations

Abstract

In this paper, we will investigate the entanglement dynamics of n-qubit states in a hierarchical environment which contains a single-mode cavity and a reservoir of an infinite number of modes. Our results imply that the time evolution of entanglement depends not only on the coupling strength between the system and the single-mode cavity but also on the correlation time of the reservoir which has no direct interaction with the states. With analysis, we find that the entanglement dynamics exhibits different behaviors in a parameter space depicted by the coupling strength and the correlation time of the reservoir. The effect of the size of the system on the pairwise entanglement is analyzed and the entanglement generation is discussed.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Xiao San Ma
    • 1
  • Mu-Tian Cheng
    • 1
  • Qiao Ying
    • 1
  • Xian Shan Huang
    • 2
  1. 1.School of Electric Engineering and Information, Anhui University of TechnologyMa’anshanP.R. China
  2. 2.School of mathematics, Anhui University of TechnologyMa’anshanP.R. China

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