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Duan, YS; Jiang, Y; Yang, GH; Duan, YS , Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China.
The topological quantization and bifurcation of strings in early universe
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
KeywordCosmic Strings Model Spin
AbstractWe 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.
2000
ISSN0253-6102
Volume33Issue:1Pages:105-112
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13025
Collection理论物理所科研产出_SCI论文
Corresponding AuthorDuan, YS , Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
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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