大学物理 ›› 2020, Vol. 39 ›› Issue (03): 1-3.doi: 10.16854 / j.cnki.1000-0712.190382

• 教学研究 •    下一篇

单光分束器的量子变换算符研究

任 刚,杜建明,余海军,张文海   

  1. 淮南师范学院电子工程学院,安徽淮南 232038
  • 收稿日期:2019-08-19 修回日期:2019-10-22 出版日期:2020-03-20 发布日期:2020-03-11
  • 作者简介:任 刚(1972—),男,山东德州人,淮南师范学院电子工程学院副教授,中国科学技术大学博士,主要从事量子力学与量子光学方面的科学研究工作.
  • 基金资助:
    安徽省教育厅自然科学基础(KJ2019A0688);安徽省省级教研项目(2018mocc125)资助

Study of quantum transformation operator for singleoptical beam splitter

REN Gang,DU Jian-ming,YU Hai-jun,ZHANG Wen-hai   

  1. School of Electronic Engineering,Huainan Normal University,Huainan,Anhui 232038,China
  • Received:2019-08-19 Revised:2019-10-22 Online:2020-03-20 Published:2020-03-11

摘要:

针对理想情况下单光分束器,得到了其对应的变换矩阵.用相干态表象和有序算符内积分技术,给出其对应的幺正

变换算符.纠缠态的实验制备方案,说明单光分束器在量子信息源研究中具有十分重要的作用.

关键词: 单光分束器, 幺正变换, 纠缠态

Abstract:

The transformation matrix of the ideal single optical beam splitter is obtained. The unitary transformation operator of the single optical beam splitter is also given by using the coherent state representation and the inner integral technique of the order operator. The experimental preparation of entangled states shows that single optical beam splitter plays an important role in the study of quantum information sources.

Key words: single optical beam splitter, unitary transformation, entangled state