Monogamy of quantum correlations in the one-dimensional anisotropic XXXYYY model
Monogamy of quantum correlations in the one-dimensional anisotropic XXXYYY model作者机构：School of Physics & Material Science Anhui University
出 版 物：《Chinese Physics B》 (中国物理B（英文版）)
年 卷 期：2014年第23卷第1期
页 面：60-65页
核心收录：
学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070201[理学-理论物理] 0704[理学-天文学] 0702[理学-物理学]
基 金：Project supported by the National Natural Science Foundation of China(Grants Nos.11074002 and 61275119) the Specialized Research Fund for the Doc-toral Program of Higher Education of China(Grant No.20103401110003) the Personal Development Foundation of Anhui Province,China(Grant No.2008Z018)
主 题：monogamy relation geometric quantum discord entanglement of formation entropy quantum discord
摘 要：In this paper, the monogamy properties of some quantum correlations, including the geometric quantum discord, concurrence, entanglement of formation and entropy quantum discord, in the anisotropic spin-1/2 XY model with stag- gered Dzyaloshinskii-Moriya （DM） interaction have been investigated using the quantum renormalization group （QRG） method. We summarize the monogamy relation for different quantum correlation measures and make an explicit compar- ison. Through mathematical calculations and analysis, we obtain that no matter whether the QRG steps are carried out, the monogamy of the given states are always unaltered. Moreover, we conclude that the geometric quantum discord and concurrence obey the monogamy property while other quantum correlation measures, such as entanglement of formation and quantum discord, violate it for this given model.
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