Quantum Fisher information in the XXZ model with Dzyaloshinskii-Moriya interaction

被引：0
|
作者：
Liu, X.M. [1 ,2 ]
Du, Z.Z. [1 ]
Cheng, W.W. [3 ]
Liu, J.-M. [1 ]
机构：
[1] Laboratory of Solid State Microstructure, Innovation Center of Advanced Microstructures, Nanjing University, Nanjing,210093, China
[2] Institute of Mathematical and Physical Sciences, Jiangsu University of Science and Technology, Zhenjiang,212003, China
[3] Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunication, Nanjing,210003, China
来源：
Solid State Communications | 2015年 / 213-214卷
关键词：
D O I：
10.1016/j.ssc.2015.04.007
中图分类号：
学科分类号：
摘要：
We have studied the quantum Fisher information of the XXZ spin chain model with Dzyaloshinskii-Moriya interaction, using the quantum renormalization-group method. The results show that the evolution behavior of quantum Fisher information with increasing lattice size can clearly illustrate the quantum transitions of this spin model. Moreover, it is demonstrated that the scaling property of quantum Fisher information at the critical point can be used to explain the spin correlation length of this model. The present work evidences the capability of the quantum Fisher information in characterizing quantum phase transitions in condensed matters. © 2015 Elsevier Ltd.
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页码：24 / 27
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