J4 ›› 2016, Vol. 33 ›› Issue (2): 200-207.

• 量子光学 • 上一篇    下一篇

单Jaynes-Cummings原子与孤立原子系统中的各种量子关联

帕肉克?帕尔哈提 艾合买提?阿不力孜 麦麦提依明?吐孙 王飞   

  1. 新疆师范大学物理与电子工程学院, 新疆 乌鲁木齐 830054
  • 收稿日期:2015-08-06 修回日期:2015-10-08 出版日期:2016-03-28 发布日期:2016-03-28
  • 通讯作者: 艾合买提?阿不力孜(1974-),维吾尔族,新疆轮台人,博士,教授,硕士生导师, E-mail:aahmad@126.com。
  • 作者简介:帕肉克?帕尔哈提(1990-),维吾尔族,新疆托克逊人,硕士研究生,研究领域:量 子信息与量子计算。E-mail:paruk888@126.com
  • 基金资助:
    新疆维吾尔自治区杰出青年基金项目(2013711019), Supported by the Project to Develop Outstanding Young Scientific Talents of Xinjiang (Grant No. 2013711019). 国家高层次人才特殊支持计划后备人选之科技创新领军人才项目, Special Support Plan For the Candidates of National High Level Talents (Project For Leading Talents in Scientific and Technological Innovation). 自治区天山英才工程第二层次培养人选项目, Project for Tianshan Outstanding Talents of Xinjiang Uyghur Autonomous Region(The Second Level Training Candidates)

Quantum Correlations in System of Single Jaynes-Cummings Atom and an Isolated Atom

Parouke Paerhati1 Ahmad Abliz Maimaitiyiming Tusun Wang Fei   

  1. School of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China
  • Received:2015-08-06 Revised:2015-10-08 Published:2016-03-28 Online:2016-03-28

摘要: 利用单Jaynes-Cummings(J-C)二能级原子和孤立原子构成的模型,研究了该模型中的各种量子关联。基于Dakic等提出的几何量子失协的度量方法,采用数值计算方法分析了系统中两原子间几何量子失协的演化,同时给出了量子纠缠和量子失协的演化。研究结果表明,通过提高两原子间初始纠缠度及处于W态时的纯度可以提高系统的量子关联。耦合常数和光子数在量子关联演化过程中同样扮演了重要的角色。

关键词: 量子光学;Jaynes-Cummings 模型;量子纠缠;量子失协;几何量子失协

Abstract: It mainly studies various correlations in the system of single Jaynes-Cummings(J-C)atom and an isolated atom via the measurement of geometric quantum discord proposed by Dakic et.al. The dynamical evolutions of geometric quantum discord between two atoms are numerically analyzed as well as those of the quantum entanglement and quantum discord.Results show that quantum correlations can be increased by increasing initial entanglement and purity of the prepared W-state of the two atoms. The coupling constant and photon number may also play a significant role in the quantum correlation dynamics.

Key words: quantum optics;Jaynes-Cummings model;quantum entanglement; quantum discord;geometrical quantum discord