Entanglement Evolution and Transfer in Landau-Zener Model

Abstract

Abstract:

The entanglement dynamical behaviors of two two-level systems, which respectively interact with a single-mode quantum light-cavity field, are investigated. The Landau-Zener model driven by the classical outfield is studied. By means of the transformed rotating-wave approximation (TRWA ), we analyze the effects of the initial entanglement, the coupling strength between two levels and the parameter of the classical outfield on the entanglement evolution and transfer of two two-level systems, by making numerical calculation. The result shows that when we choose the appropriate condition, the initial entanglement can be perfectly transferred into the light-cavity fields. So the biggest entanglement transfer between the two-level systems and light-cavity fields would be realized easily.

Key words: quantum optics, quantum entanglement, concurrence, Landau-Zener model

Wang Hai-Feng, Zhang Ying-Jie. Entanglement Evolution and Transfer in Landau-Zener Model[J]. J4, 2015, 32(6): 691-698.

References

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Entanglement Evolution and Transfer in Landau-Zener Model

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