中国物理B ›› 2007, Vol. 16 ›› Issue (4): 962-974.doi: 10.1088/1009-1963/16/4/018

• GENERAL • 上一篇    下一篇

Quantum study of Foldy--Wouthuysen--Tani theory on lattice

刘大庆   

  1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2006-03-23 修回日期:2006-10-13 出版日期:2007-04-20 发布日期:2007-04-20

Quantum study of Foldy--Wouthuysen--Tani theory on lattice

Liu Da-Qing(刘大庆)†   

  1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2006-03-23 Revised:2006-10-13 Online:2007-04-20 Published:2007-04-20

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摘要： We study here a quantum version of Foldy--Wouthuysen--Tani (FWT) transformation and compare the similarities and differences between the quantum and the classic FWT theories. Then the improvement of action on lattice is discussed. The result shows that it is not necessary to improve the covariant difference along the time direction on lattice. Finally we discuss briefly the structure of physical vacuum and give a model independent of field condensate.

Abstract: We study here a quantum version of Foldy--Wouthuysen--Tani (FWT) transformation and compare the similarities and differences between the quantum and the classic FWT theories. Then the improvement of action on lattice is discussed. The result shows that it is not necessary to improve the covariant difference along the time direction on lattice. Finally we discuss briefly the structure of physical vacuum and give a model independent of field condensate.

Key words: Foldy--Wouthuysen--Tani transformation, glueball

中图分类号:  (Lattice QCD calculations)

  • 12.38.Gc
11.15.-q (Gauge field theories)