Knowledge Management System of Institute of Theoretical Physics, CAS
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 | |
发表期刊 | COMMUNICATIONS IN THEORETICAL PHYSICS |
关键词 | Cosmic Strings Model Spin |
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. |
2000 | |
ISSN | 0253-6102 |
卷号 | 33期号:1页码:105-112 |
学科领域 | Physics |
收录类别 | SCI |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/13025 |
专题 | SCI期刊论文 |
通讯作者 | Duan, YS , Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China. |
推荐引用方式 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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