College Physics >

2017 , Vol. 36 >Issue 2: 18 - 23

DOI: https://doi.org/10.16854 /j.cnki.1000-0712.2017.02.005

Application of coherent state in the normal ordering of quantum operators

  • REN Gang ,
  • DU Jian-ming ,
  • YU Hai-jun ,
  • ZHANG Wen-hai
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  • School of Electronic Engineering，Huainan Normal University，Huainan，Anhui 232038，China

Received date: 2016-01-28

  Revised date: 2016-07-14

  Online published: 2017-02-20

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Abstract

By using the over-completeness of coherent state and the technique of integration within an ordered product of operators，we derive some new normal ordering forms of quantum operators. Compared with other methods， this method is easier and clearer in theory and application.

Key words： coherent state; normal ordering of quantum operators; technique of integration within an ordered product of operators

Cite this article

REN Gang , DU Jian-ming , YU Hai-jun , ZHANG Wen-hai . Application of coherent state in the normal ordering of quantum operators[J]. College Physics, 2017 , 36(2) : 18 -23 . DOI: 10.16854 /j.cnki.1000-0712.2017.02.005

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