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TOPOLOGICAL STRUCTURE AND EVOLUTION OF SPACE–TIME DISLOCATIONS AND DISCLINATIONS

Y. S. DUAN

Institute of Theoretical Physics, Lanzhou University, Lanzhou Gansu 730000, China

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and

L. ZHAO

Institute of Theoretical Physics, Lanzhou University, Lanzhou Gansu 730000, China

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https://doi.org/10.1142/S0217751X07033976Cited by:10 (Source: Crossref)

Abstract

By making use of the gauge potential decomposition theory and ϕ-mapping theory, the topological structure and the topological quantization of dislocations and disclinations are studied in the framework of Riemann–Cartan space–time manifold. The evolution of dislocation strings and disclination points is also studied from the topological properties of the order parameter field. The dislocations and disclinations are found generating or annihilating at the limit points and encountering, splitting, or merging at the bifurcation points of the order parameter field.

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