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The Chern-Simons term induced at high temperature and the quantization of its coefficient
Zhao, WY; Zhao, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
1999
发表期刊EUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
卷号11期号:4页码:733-738
摘要By perturbative calculations of the high-temperature ground-state axial vector current of fermion fields coupled to gauge fields, an anomalous Chern-Simons topological mass term is induced in the three-dimensional effective action. The anomaly in three dimensions appears just in the groundstate current rather than in the divergence of ground-state current. In the Abelian case: the contribution comes only from the vacuum polarization graph, whereas in the non-Abelian case, contributions come from the vacuum polarization graph and the two triangle graphs. The relation between the quantization of the Chern-Simons coefficient and the Dirac quantization condition of magnetic charge is also obtained. It implies that in a (2+1)-dimensional QED with the Chern-Simons topological mass term and a magnetic monopole with magnetic charge g present, the Chern-Simons coefficient must be also quantized, just as in the non-Abelian case.
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Massive Gauge-theories Finite-temperature Field-theory Topological Mass Renormalization Regularization Statistics
学科领域Physics
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收录类别SCI
WOS记录号WOS:000084716200014
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13057
专题理论物理所1978-2010年知识产出
通讯作者Zhao, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Zhao, WY,Zhao, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. The Chern-Simons term induced at high temperature and the quantization of its coefficient[J]. EUROPEAN PHYSICAL JOURNAL C,1999,11(4):733-738.
APA Zhao, WY,&Zhao, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1999).The Chern-Simons term induced at high temperature and the quantization of its coefficient.EUROPEAN PHYSICAL JOURNAL C,11(4),733-738.
MLA Zhao, WY,et al."The Chern-Simons term induced at high temperature and the quantization of its coefficient".EUROPEAN PHYSICAL JOURNAL C 11.4(1999):733-738.
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