Localization of matters on a string-like defect
Localization of matters on a string-like defect
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DOI：
10.1016/s0370-2693(00)01284-3
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发表时间：
2000-06
影响因子：
4.4
通讯作者：
I. Oda
中科院分区：
文献类型：
--
作者：
I. Oda
在给出爱因斯坦方程的带弯曲因子的类弦解之后，我们从场论的观点研究了一般时空维中各种自旋场在类弦缺陷上的局域化.结果表明，自旋为0和2的领域是本地化的缺陷与指数递减的翘曲因子。自旋为1的场也可以在弯曲因子呈指数递减的缺陷上局域化。另一方面，自旋二分之一和三分之一的字段可以本地化的缺陷与指数增加的翘曲因子，提供了额外的相互作用不被引入。因此，对于这些费米场，必须调用某种定域化机制。除了自旋为1的场外，这些结果与5维时空中畴壁的结果非常相似。
After presenting string-like solutions with a warp factor to Einstein's equations, we study localization of various spin fields on a string-like defect in a general space–time dimension from the viewpoint of field theory. It is shown that spin 0 and 2 fields are localized on a defect with the exponentially decreasing warp factor. Spin 1 field can be also localized on a defect with the exponentially decreasing warp factor. On the other hand, spin one-half and three-half fields can be localized on a defect with the exponentially increasing warp factor, provided that additional interactions are not introduced. Thus, some mechanism of localization must be invoked for these fermionic fields. These results are very similar to those of a domain wall in five space–time dimensions except the case of spin 1 field.