...边形缺陷对的 关键字： 碳纳米管;拓扑缺陷;电子态密度;同质结;异质结[gap=1163]Key words: carbon nanotube; topological defect; densities of states of the electronic; homojuction; heterojuction..
拓扑缺陷 - 引用次数：1参考来源 - 一种新的基于自组织映射的流形学习算法 A New Manifold Learning Algorithm Based on SOM
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Topological defect
abstract:In mathematics and physics, a topological soliton or a topological defect is a solution of a system of partial differential equations or of a quantum field theory homotopically distinct from the vacuum solution; it can be proven to exist because the boundary conditions entail the existence of homotopically distinct solutions. Typically, this occurs because the boundary on which the boundary conditions are specified has a non-trivial homotopy group which is preserved in differential equations; the solutions to the differential equations are then topologically distinct, and are classified by their homotopy class.