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Chinese Physics, 2007, Vol. 16(4): 962-974    DOI: 10.1088/1009-1963/16/4/018
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Quantum study of Foldy--Wouthuysen--Tani theory on lattice

Liu Da-Qing(刘大庆)
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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.
Keywords:  Foldy--Wouthuysen--Tani transformation      glueball  
Received:  23 March 2006      Revised:  13 October 2006      Accepted manuscript online: 
PACS:  12.38.Gc (Lattice QCD calculations)  
  11.15.-q (Gauge field theories)  

Cite this article: 

Liu Da-Qing(刘大庆) Quantum study of Foldy--Wouthuysen--Tani theory on lattice 2007 Chinese Physics 16 962

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