New Results For Cuscuton Multi-Field Brane

TL;DR

This paper explores how incorporating cuscuton dynamics in multi-field braneworld models significantly alters the brane's internal structure, warp factor, and stability, providing new insights into modified gravity scenarios.

Contribution

It introduces a novel mechanism using cuscuton dynamics to modify the internal structure of branes in multi-field models within modified gravity frameworks.

Findings

Cuscuton inclusion changes the brane's warp factor and energy density.

It causes unique modifications in the stability potential and zero mode.

The models with cuscuton exhibit distinct internal structures compared to standard cases.

Abstract

We investigate braneworld models in the presence of the several scalar fields with generalized dynamics. A new mechanism to control the internal structure of brane in modified gravity is used to induce changes in the models in the presence of cuscuton dynamics. Examples with two- and three-field are considered, and we have found that the inclusion of the cuscuton can significantly alter the profile of the brane, causing unique changes in the warp factor, energy density, stability potential and the corresponding zero mode.