Smooth braneworld in $6$-dimensional asymptotically AdS spacetime

Abstract

In this paper, we investigate a $6$-dimensional smooth thick braneworld model which contains a compact extra dimension and an infinite large one. The braneworld is generated by a real scalar field with a ${\varphi }^6$ potential and the bulk is asymptotically ${\text{AdS}}_6$ spacetime. The geometry achieves the localization of the free $U(1)$ gauge field, which is a problem in the $5$-dimensional Randall-Sundrum-like models. In addition, we analyze the stability of the braneworld system and the localization of gravitons.

15 pages, 11 figures