Decoherence Induced by the Environment for Dimerized Anisotropic XY Spin Chain

Authors

  • Zhong-Jie Wang College of Physics and electronic information, Anhui Normal University, Wuhu, 241000, China
  • Xu Fang College of Physics and electronic information, Anhui Normal University, Wuhu, 241000, China
  • Ren-Gui Zhu College of Physics and electronic information, Anhui Normal University, Wuhu, 241000, China

DOI:

https://doi.org/10.4208/jams.070514.091614a

Keywords:

dimerized anisotropic XY spin chain, decoherence, Loschmidt echo.

Abstract

The Loschmidt echo of single qubit coupling to the environment for dimerized anisotropic XY spin chain in transverse field have been analyzed. We have obtained analytical expression for the Loschmidt echo. By numerically computing the Loschmidt echo, we find that the decay of coherence will be enhanced with the increasing of the staggered parameter.

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Published

2021-02-23

Issue

Vol. 5 No. 4 (2014)

Section

Articles