The Removability of the Topological Term in the CP<SUP>1</SUP> Model and θ Vacuum

Gao Xiaochun; Qian Tiezheng

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2024年10月30日

Chinese Physics C> 1994, Vol. 18> Issue(2) : 137-142

The Removability of the Topological Term in the CP¹ Model and θ Vacuum

Gao Xiaochun ^, ,
Qian Tiezheng

Physics Department, Zhejiang University, Hangzhou 310027

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Abstract：
In this paper, the removability of the topological term in the 1+1 dimension CP¹ model is studied. The unitary transformation which removes the topological term in the CP¹ model is obtained. The relation of the topological term to the a vacuum and geometric phase is found.

References

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[2]	ZHAO Xiu-Mei , CAO Li-Ke , YANG Tao , YUE Rui-Hong . Integrability of a Quantum Derivative Nonlinear Schrodinger Model for Spin-1/2 Particle. Chinese Physics C, 2004, 28(9): 936-940.
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[6]	WANG Shu-Zhong , HUANG Yong-Chang . SU(2)_L×SU(2)_R×U(1) σ-Model with Both Dynamical Breaking andVacuum Spontaneous Symmetry Breaking. Chinese Physics C, 2001, 25(12): 1152-1157.
[7]	Shi Kangiie , Li Guangliang , Fan Heng , Hou Boyu . Polyparametioner Solution to the Renflection Equationin the A_n－1⁽¹⁾ Face Model. Chinese Physics C, 1999, 23(12): 1163-1170.
[8]	Jiang Junqin , Luo Xiangqian . Study of the Vacuum State in (2+1)-Dimensional U(1) Lattice Gauge Theory. Chinese Physics C, 1999, 23(8): 774-783.
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[13]	Gao Xiaochun , Qian Tiezheng . The Removability of the Topological Term in the CP¹ model and ϑ-Vacuum. Chinese Physics C, 1993, 17(S4): 355-360.
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[16]	LUO Xiang-Qian , CHEN Qi-Zhou , GUO Shuo-Hong . VACUUM OF 2+1 DIMENSIONAL SU(2) LGT WITH FERMIONS AND SPONTANEOUS CHIRAL SYMMETRY BREAKING. Chinese Physics C, 1989, 13(4): 328-333.
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Gao Xiaochun and Qian Tiezheng. The Removability of the Topological Term in the CP¹ Model and θ Vacuum[J]. Chinese Physics C, 1994, 18(2): 137-142.

Gao Xiaochun and Qian Tiezheng. The Removability of the Topological Term in the CP¹ Model and θ Vacuum[J]. Chinese Physics C, 1994, 18(2): 137-142. shu

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

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The Removability of the Topological Term in the CP¹ Model and θ Vacuum

Gao Xiaochun ^,
Qian Tiezheng

Corresponding author: Gao Xiaochun,

Physics Department, Zhejiang University, Hangzhou 310027

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-02-05

Abstract: In this paper, the removability of the topological term in the 1+1 dimension CP¹ model is studied. The unitary transformation which removes the topological term in the CP¹ model is obtained. The relation of the topological term to the a vacuum and geometric phase is found.