Chinese Physics C > 1995, Vol. 19 > Issue(S3): 257-264

Removability of the Topological Term in the 2+1 Dimensional CP¹Model

Physics Department, Zhejiang University, Hangzhou, Zhejiang, China

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Abstract：
The removability of the topological term in the 2+1 dimensional CP ¹model is studied. Both the classical canonical transformation and quantum unitary transformation for the topological term are obtained. It is pointed out that, in order to give an answer to the question 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 CP ¹model.
- CP¹model,
- topological term,
- removability

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Gao Xiaochun and Xu Donghui. Removability of the Topological Term in the 2+1 Dimensional CP ¹Model[J]. Chinese Physics C, 1995, 19(S3): 257-264.

Gao Xiaochun and Xu Donghui. Removability of the Topological Term in the 2+1 Dimensional CP ¹Model[J]. Chinese Physics C, 1995, 19(S3): 257-264. shu

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Received: 1994-02-21

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Supported by the National Natural Science Foundation of China and Zhejiang Provincial National Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

Removability of the Topological Term in the 2+1 Dimensional CP¹Model

Gao Xiaochun
Xu Donghui

Physics Department, Zhejiang University, Hangzhou, Zhejiang, China

Received Date:1994-02-21

Fund Project:Supported by the National Natural Science Foundation of China and Zhejiang Provincial National Science Foundation of China.

Abstract:The removability of the topological term in the 2+1 dimensional CP¹model is studied. Both the classical canonical transformation and quantum unitary transformation for the topological term are obtained. It is pointed out that, in order to give an answer to the question 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 CP¹model.