Topological mass generation in four dimensions.
Topological mass generation in four dimensions.
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四个维度的拓扑质量生成。
DOI：
10.1103/physrevlett.96.081602
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发表时间：
2005
影响因子：
8.6
通讯作者：
S. Pi
中科院分区：
文献类型：
--
作者：
G. Dvali;R. Jackiw;S. Pi
我们表明，在一个大类的物理有趣的系统的质量生成现象可以理解的拓扑结构，而不需要详细的知识的基础动力学。这是第一次证明表明，施温格的机制，质量产生依赖于拓扑结构的二维规范理论。以相同的方式，相应的四维拓扑实体产生四维拓扑质量生成。这个公式为一些看似无关的现象提供了一个统一的拓扑描述，例如二维超导性，以及由QCD产生的eta'和轴子质量，可能还有引力。
We show that in a large class of physically interesting systems the mass-generation phenomenon can be understood in terms of topological structures, without requiring a detailed knowledge of the underlying dynamics. This is first demonstrated by showing that Schwinger's mechanism for mass generation relies on topological structures of a two-dimensional gauge theory. In the same manner, corresponding four-dimensional topological entities give rise to topological mass generation in four dimensions. This formulation offers a unified topological description of some seemingly unrelated phenomena, such as two-dimensional superconductivity, and the generation of eta' and axion masses by QCD, and possibly by gravity.