R emovability of the Topological Term in the 2+1 Dimensional CP<SUP>1</SUP> Model

Gao Xiaochun; Xu Donghui

Chinese Physics C> 1995, Vol. 19> Issue(5) : 413-419

R emovability of the Topological Term in the 2+1 Dimensional CP¹ Model

Gao Xiaochun ^, ,
Xu Donghui

Physics Department, Zhejiang University, Hangzhou 310027

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Abstract：
The removability of the topological term in 2+1 Dimensional CP¹ model is studied. Both the classical canonical transformation and quantum unitary transformation for the removal of the topological term are obtained. It is pointed out that,in order to give an answer to the question of whether the topological term exists or not, one has to study not only the corresponding microscopic spin model but also the vacuum structure of the CP¹ model.

References

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Gao Xiaochun and Xu Donghui. R emovability of the Topological Term in the 2+1 Dimensional CP¹ Model[J]. Chinese Physics C, 1995, 19(5): 413-419.

Gao Xiaochun and Xu Donghui. R emovability of the Topological Term in the 2+1 Dimensional CP¹ Model[J]. Chinese Physics C, 1995, 19(5): 413-419. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

R emovability of the Topological Term in the 2+1 Dimensional CP¹ Model

Gao Xiaochun ^,
Xu Donghui

Corresponding author: Gao Xiaochun,

Physics Department, Zhejiang University, Hangzhou 310027

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-05-05

Abstract: The removability of the topological term in 2+1 Dimensional CP¹ model is studied. Both the classical canonical transformation and quantum unitary transformation for the removal of the topological term are obtained. It is pointed out that,in order to give an answer to the question of whether the topological term exists or not, one has to study not only the corresponding microscopic spin model but also the vacuum structure of the CP¹ model.