K-场畴壁解

K-fields domain wall

通过考虑五维平直时空中非正则的标量场K-场,得到了解析的单扭结和双扭结K-场畴壁解.然后采用Yukawa耦合机制研究五维费米子在单扭结和双扭结K-场畴壁上的局域化,发现四维零质量的手征费米子可以局域化在K-场畴壁上.最后通过对比费米子在两种扭结畴壁上的有效势,发现双扭结畴壁情况的有效势具有双阱的特征,表明双扭结畴壁具有更加丰富的内部结构.

In this paper, we construct the single kink and double kink domain wall solutions by considering the non-canonical K- field in a fiat five-dimensional spcaetime. The localization of chiral fermion is also investigated with the Yukawa coupling mechanism, and the corresponding massless left-chiral fermion can be localized on the K-field two types domain walls. The effective potentials of the chiral fermion on the two types domain walls will have different behaviors and the corresponding effective potential of the chiral fermion on the double-kink domain wall will have double well, and which means that the double kink domain wall will have mroe richer internal structures.