Abstract

We investigate quantum entanglement transfer through two independent spin chains with three site and Dzyaloshinsky–Moriya interactions and the effect of phase shift. The initial target state |01+|10/2 or its mixed state is shown to be more suitable for quantum correlation transfer in this system. Although the three-site or Dzyaloshinsky–Moriya interaction can partially improve the transmission quality of quantum entanglement, it mainly enhances the amplitude rather than prolongs the survival time of entanglement. We find that strengthening the three-site interaction enhances the amplitude of quantum entanglement more significantly, and that of Dzyaloshinsky–Moriya interaction accelerates the entanglement vibration as time evolution more obviously.

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