Fermion localization and degenerate resonances on brane array

In this work, we consider the multi-wall braneworld arisen from multi-scalar fields, and investigate the localization and resonances of spin-1/2 fermion on the multi-walls. We build two analytic multi-wall solutions with a polynomial superpotential and a modified sine-Gordon superpotential respectiv...

Full description

Saved in:
Bibliographic Details
Published in:Classical and quantum gravity 2020-01, Vol.37 (2), p.25012
Main Authors: Xie, Qun-Ying, Zhao, Zhen-Hua, Yang, Jie, Yang, Ke
Format: Article
Language:English
Subjects:
braneworld
degenerate resonances
extra dimension
fermion localization
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, we consider the multi-wall braneworld arisen from multi-scalar fields, and investigate the localization and resonances of spin-1/2 fermion on the multi-walls. We build two analytic multi-wall solutions with a polynomial superpotential and a modified sine-Gordon superpotential respectively. The massless fermion is the only bound state and localized between the two outermost sub-branes. The factors affecting the number of massive resonant fermions are analyzed. What interesting is that all the fermion resonant states are non-degenerate for the cases of single- and two-walls, however, doubly-degenerate fermion resonant states emerge for the cases of three- and four-walls. This novel phenomenon could be potentially interesting in phenomenology.
ISSN:0264-9381
1361-6382
DOI:10.1088/1361-6382/ab5b74