Compact structures in impurity-doped vacuumless systems
High Energy Physics - Theory
2026-05-25 v1
Abstract
We investigate novel structures which arise from the compactification of vacuumless kinks in scalar field models coupled to impurities that preserve half the BPS sectors, described by first-order equations. We also investigate the behavior of the energy density and linear stability of the solutions. We show that compact vacuumless kinks cannot be obtained in impurity-free canonical models. By considering two distinct impurities, we study the conditions needed to induce compactification. In this scenario, stable half-compact or compact solutions are shown to emerge from the systems.
Cite
@article{arxiv.2605.23545,
title = {Compact structures in impurity-doped vacuumless systems},
author = {I. Andrade and D. Bazeia and M. A. Marques and R. Menezes},
journal= {arXiv preprint arXiv:2605.23545},
year = {2026}
}
Comments
9 pages, 5 figures; published in Chaos, Solitons and Fractals