| 超流He系统的拓扑结构研究 |
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| 引用本文： | 张端明,吴颖. 超流He系统的拓扑结构研究[J]. 华中科技大学学报(自然科学版), 1991, 0(4) |
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| 作者姓名： | 张端明 吴颖 |
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| 作者单位： | 华中理工大学物理系(张端明)，华中理工大学物理系(吴颖) |
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| 摘 要： | 本文利用有序介质缺陷的同伦论系统地研究超流He系统的拓扑结构.对于~4He和~3He的A,B相的拓扑结构,给出更严格、更简洁的讨论.尤其是,以代数拓扑理论为工具,本文预言超流~3He系统的四种新相:C,D,E和F相,给出其拓扑结构的示性数,以及C,D相出现的大致物理条件.
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| 关 键 词： | 同伦群 对称群 序参量空间 迷向群 缺陷的拓扑理论 超流He |
On the Topological Structure of a Superfluid Helium System |
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| Zhang Duanming Wu Yin. On the Topological Structure of a Superfluid Helium System[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1991, 0(4) |
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| Authors: | Zhang Duanming Wu Yin |
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| Affiliation: | Zhang Duanming Wu Yin |
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| Abstract: | The topological structure of the superfluid He system has been studied using the homotopy theory for defects in ordered media developed in the 80s. Topological structures of the 4He and A, B phases of 3He have been treated in a more strict and accurate way than those discussed in available literature. It is predicted that there are four possible new phases, C, D, E and F for the 3He system by employing the theory of algebraic topology. Approximate physical conditions for the appearance of C and D phases and the characteristic numbers of topological structure of the four new phases are given. |
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| Keywords: | Homotopy group Symmetry group Order parameter space . Isotropic group Topological theory of defects Superfluid He |
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