Dvali Gia, Jackiw R, Pi So-Young
Department of Physics, New York University, New York, New York 10003, USA.
Phys Rev Lett. 2006 Mar 3;96(8):081602. doi: 10.1103/PhysRevLett.96.081602. Epub 2006 Mar 2.
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.
我们表明，在一大类具有物理意义的系统中，质量产生现象可以根据拓扑结构来理解，而无需对潜在动力学有详细了解。这首先通过证明施温格的质量产生机制依赖于二维规范理论的拓扑结构得以证实。同样地，相应的四维拓扑实体在四维中产生拓扑质量。这种表述为一些看似不相关的现象提供了统一的拓扑描述，比如二维超导性，以及由量子色动力学（QCD），可能还有引力产生的η'和轴子质量。
