吉林大学学报(理学版) ›› 2018, Vol. 56 ›› Issue (5): 1224-1228.

• 物理 • 上一篇    下一篇

用多个光子晶体实现量子纠缠态的稳定性

刘晓静1,  刘继平1,  张晓茹1,  刘晗1,  潘庆1,梁禺1,  张斯淇2,  陆景彬2,  吴向尧1   

  1. 1. 吉林师范大学 物理学院,  吉林 四平 136000; 2. 吉林大学 物理学院,  长春 130012
  • 收稿日期:2017-05-11 出版日期:2018-09-26 发布日期:2018-11-22
  • 通讯作者: 吴向尧 E-mail:wuxy65@126.com

Stability of Quantum Entangled Stateswith Multiple Photonic Crystals

LIU Xiaojing1,  LIU Jiping1, ZHANG Xiaoru1, LIU Han1, PAN Qing1,LIANG Yu1, ZHANG Siqi2,  LU Jingbin2, WU Xiangyao1   

  1. 1.  College  of Physics, Jilin Normal University, Siping 136000, Jilin Province, China;
    2. College  of Physics, Jilin University, Changchun 130012, China
  • Received:2017-05-11 Online:2018-09-26 Published:2018-11-22

摘要: 量子纠缠态的纠缠度随传播距离增加或外界干扰而变小,  在光与环境相互作用的退相干效应下,  可使纠缠度降低或不再纠缠. 
基于此, 设计一组一维光子晶体, 当两光子或三光子的纠缠光通过该组光子晶体, 且叠加参数c1=0.03~0.98时, 纠缠度E=0.8~1, 从而使量子纠缠态可远距离传输, 更好地实现量子通信.

关键词: 量子纠缠, 量子通信, 纠缠放大器, 光子晶体

Abstract: The quantum entangled degrees of entangled states decreased  with the transmission distance increasing or external interference. The entangled degree was reduced or no longer entangled under the decoherence effect of interaction between light and environment. We designed a set of  one\|dimensional photonic crystals when the entangled light  of two-photon or three-photon passed through photonic crystal, and the superimposed parameter was 003—098, the entangled degree E was 0.8—1, so that the quantum  entangled  state could be transported for a  long distance to achieve quantum communication better.

Key words: quantum entanglement, quantum communication, entanglement amplifier, photonic crystal

中图分类号: 

  • O439