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International Journal of Theoretical Physics

, Volume 50, Issue 8, pp 2552–2559 | Cite as

Entanglement of Two Atoms in Insulator and Superfluid States

  • Zhong-Ju Liu
  • Wei-Bin Yan
  • Ling Zhou
Article

Abstract

We study two coupled cavities, each of which contains two two-level atoms. We identify the regions of Mott-insulator and superfluid states. Ground-state entanglement of two atoms in one cavity has been investigated. The result show that quantum entanglement of two atoms within one cavity can also characterize quantum phase transition.

Keywords

Insulator state Superfluid state Ground-state entanglement Coupled cavity 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.School of Physics and Optoelectronic EngineeringDalian University of TechnologyDalianP.R. China

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