The entanglement between two isolated atoms in the double mode mode competition model

被引:0
|
作者
吴琴 [1 ]
方卯发 [2 ]
蔡建武 [3 ]
胡要花 [2 ]
机构
[1] School of Basic Medical Science,Guangdong Medical College
[2] College of Physics and Information Science,Hunan Normal University
[3] Department of Physics,Hunan Industrial University
基金
中国国家自然科学基金;
关键词
double mode-mode competition model; concurrence; entanglement; sudden death;
D O I
暂无
中图分类号
O431.2 [量子光学]; O562 [原子物理学];
学科分类号
070203 ; 070207 ; 0803 ; 1406 ;
摘要
Extending the double Jaynes-Cummings model to a more complicated case where the mode-mode competition is considered,we investigate the entanglement character of two isolated atoms by means of concurrence,and discuss the dependence of atom-atom entanglement on the different initial state and the relative coupling strength between the atom and the corresponding cavity field.The results show that the amplitude and the period of the atom-atom entanglement evolution can be controlled by the choice of initial state and relative coupling strength,respectively.We find that the phenomenon of entanglement sudden death (ESD) is sensitive to the initial conditions.The length of the time interval for zero entanglement depends not only on the initial degree of entanglement between two atoms but also on the relative coupling strength of atom-field interaction.The ESD effect can be weakened by enhancing the mode-mode competition between the three-and single-photon processes.
引用
下载
收藏
页码:5336 / 5341
页数:6
相关论文
共 50 条
  • [21] The mode competition in a two-mode semiconductor laser
    Baimenshina, G.
    3RD INTERNATIONAL CONFERENCE ON SCIENCE & ENGINEERING IN MATHEMATICS, CHEMISTRY AND PHYSICS 2015 (SCITECH 2015), 2015, 622
  • [22] Production of Entanglement of Multiple Three-Level Atoms with a Two-Mode Cavity
    ZHENG Shi-Biao Department of Electronic Science and Applied Physics
    Communications in Theoretical Physics, 2006, 45 (03) : 539 - 541
  • [23] Production of entanglement of multiple three-level atoms with a two-mode cavity
    Zheng, SB
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2006, 45 (03) : 539 - 541
  • [24] Sudden death and long-lived entanglement between two atoms in a double JC model system
    Hu, Yao-Hua
    Fang, Mao-Fa
    Cai, Jian-Wu
    Jiang, Chun-Lei
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2008, 47 (10) : 2554 - 2565
  • [25] Sudden Death and Long-Lived Entanglement Between Two Atoms in a Double JC Model System
    Yao-Hua Hu
    Mao-Fa Fang
    Jian-Wu Cai
    Chun-Lei Jiang
    International Journal of Theoretical Physics, 2008, 47 : 2554 - 2565
  • [26] Entanglement evolution of two Λ-type three-level atoms in a two-mode cavity field
    Yang, Kui-San
    Xia, Yun-Jie
    Guangdianzi Jiguang/Journal of Optoelectronics Laser, 2007, 18 (07): : 859 - 862
  • [27] Two-mode entanglement via superpositions of two-mode coherent states
    Ping, Yun-Xia
    Zhang, Bo
    Cheng, Ze
    Xu, Qinfeng
    MODERN PHYSICS LETTERS B, 2007, 21 (19): : 1253 - 1259
  • [28] Mode Competition in a Two-Mode Gyrotron With Delayed Reflections
    Chumakova, Maria M.
    Usacheva, Svetlana A.
    Glyavin, Mikhail Yu
    Novozhilova, Yulia V.
    Ryskin, Nikita M.
    IEEE TRANSACTIONS ON PLASMA SCIENCE, 2014, 42 (08) : 2030 - 2036
  • [29] Coherence-enhanced and -controlled entanglement of two atoms in a single-mode thermal field
    Wang, Xian-ying
    Du, Si-de
    Chen, Xiao-shuang
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (18) : 3805 - 3814
  • [30] Entanglement between two atoms in a damping Jaynes-Cummings model
    Zhang, G. F.
    Xie, X. C.
    EUROPEAN PHYSICAL JOURNAL D, 2010, 60 (02): : 423 - 427