TY - JOUR T1 - Decoherence Induced by the Environment for Dimerized Anisotropic XY Spin Chain AU - Wang , Zhong-Jie AU - Fang , Xu AU - Zhu , Ren-Gui JO - Journal of Atomic and Molecular Sciences VL - 4 SP - 331 EP - 337 PY - 2014 DA - 2014/05 SN - 5 DO - http://doi.org/10.4208/jams.070514.091614a UR - https://global-sci.org/intro/article_detail/jams/8299.html KW - dimerized anisotropic XY spin chain, decoherence, Loschmidt echo. AB -
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.