Quantum discord for a central two-qubit system coupled to an XY spin chain with Dzyaloshinsky-Moriya interaction

被引：11
|
作者：
Qiu, Liang [1 ]
Wang, An Min [2 ]
机构：
[1] China Univ Min & Technol, Dept Phys, Xuzhou 221116, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
来源：
PHYSICA SCRIPTA | 2011年 / 84卷 / 04期
基金：
中国国家自然科学基金;
关键词：
SUDDEN-DEATH; ENTANGLEMENT; STATES;
D O I：
10.1088/0031-8949/84/04/045021
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigated the quantum discord dynamics of a central two-qubit system coupled to an XY spin chain with the Dzyaloshinsky-Moriya (DM) interaction. We found that the DM interaction does not affect the behavior of the quantum phase transition induced by the external magnetic field. Moreover, the DM interaction enhances the decay of quantum discord in the weak-coupling regime, while it has no obvious effect on the quantum discord dynamics in the strong-coupling regime.
引用
收藏
页数：6
相关论文
共 50 条
  • [41] Quantum correlation for a central two-qubit system coupled to Ising chain
    Yang Yang
    Wang An-Min
    ACTA PHYSICA SINICA, 2013, 62 (13)
  • [42] Thermal entanglement in a two-qubit Heisenberg XY chain with the Dzyaloshinskii-Moriya interaction
    Qin Meng
    Xu Sheng-Long
    Tao Ying-Juan
    Tian Dong-Ping
    CHINESE PHYSICS B, 2008, 17 (08) : 2800 - 2803
  • [43] Thermal entanglement in a two-qubit Heisenberg XY chain with the Dzyaloshinskii-Moriya interaction
    秦猛
    徐胜龙
    陶应娟
    田东平
    Chinese Physics B, 2008, 17 (08) : 2800 - 2803
  • [44] Dynamics of quantum discord for a two-qubit system
    杨雄
    肖佳华
    Optoelectronics Letters, 2013, 9 (01) : 69 - 72
  • [45] Dynamics of quantum discord for a two-qubit system
    Yang X.
    Xiao J.-H.
    Optoelectron. Lett., 2013, 1 (69-72): : 69 - 72
  • [46] Thermal quantum correlations in the two-qubit Heisenberg XYZ spin chain with Dzyaloshinskii-Moriya interaction
    Khedif, Youssef
    Daoud, Mohammed
    MODERN PHYSICS LETTERS A, 2021, 36 (11)
  • [47] Correlation dynamics of a qubit qutrit system in a spin-chain environment with Dzyaloshinsky Moriya interaction
    杨阳
    王安民
    Chinese Physics B, 2014, (02) : 103 - 109
  • [48] Correlation and coherence for two-qubit system coupled to XY spin chains
    Yang Yang
    Wang An-Min
    Cao Lian-Zhen
    Zhao Jia-Qiang
    Lu Huai-Xin
    ACTA PHYSICA SINICA, 2018, 67 (15)
  • [49] Quantum Fisher information and coherence in one-dimensional XY spin models with Dzyaloshinsky-Moriya interactions
    Ye, Biao-Liang
    Li, Bo
    Wang, Zhi-Xi
    Li-Jost, Xianqing
    Fei, Shao-Ming
    SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2018, 61 (11)
  • [50] Thermal entanglement versus quantum-memory-assisted entropic uncertainty relation in a two-qubit Heisenberg system with Herring-Flicker coupling under Dzyaloshinsky-Moriya interaction
    Bouafia, Zakaria
    Oumennana, Mansoura
    Mansour, Mostafa
    Ouchni, Fatiha
    APPLIED PHYSICS B-LASERS AND OPTICS, 2024, 130 (06):
12345