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The topological quantization and bifurcation of strings in early universe
Duan, YS; Jiang, Y; Yang, GH; Duan, YS , Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China.
2000
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号33期号:1页码:105-112
摘要We present a new topological invariant to describe the spacetime defect in Riemann-Cartan manifold. By means of the phi-mapping theory and the rank-two topological tensor current (associated to the new topological invariant), we show that there must exist many string objects which naturally generated from the zero points of phi-mapping and is quantized in the topological level under the condition that the Jacobian J(phi/upsilon) not equal 0. When J(phi/upsilon) = 0, we find that there exists a crucial case of branch process. Based on the implicit function theorem and the Taylor expansion, the origin and bifurcation of the strings are detailed in the neighborhoods of the limit points and bifurcation points of phi-mapping, respectively.
部门归属Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
关键词Cosmic Strings Model Spin
学科领域Physics
收录类别SCI
WOS记录号WOS:000085038200019
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13025
专题理论物理所SCI论文
通讯作者Duan, YS , Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China.
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Duan, YS,Jiang, Y,Yang, GH,et al. The topological quantization and bifurcation of strings in early universe[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,33(1):105-112.
APA Duan, YS,Jiang, Y,Yang, GH,&Duan, YS , Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China..(2000).The topological quantization and bifurcation of strings in early universe.COMMUNICATIONS IN THEORETICAL PHYSICS,33(1),105-112.
MLA Duan, YS,et al."The topological quantization and bifurcation of strings in early universe".COMMUNICATIONS IN THEORETICAL PHYSICS 33.1(2000):105-112.
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