English

Boundary scattering in the $\phi^{6}$ model

High Energy Physics - Theory 2020-01-08 v2

Abstract

We study the non-integrable ϕ6\phi^{6} model on the half-line. The model has two topological sectors. We chose solutions from just one topological sector to fix the initial conditions. The scalar field satisfies a Neumann boundary condition ϕx(0,t)=H\phi_{x}\left(0,t\right)=H. We study the scattering of a kink (antikinks) with all possible regular and stable boundaries. When H=0H=0 the results are the same observed for scattering for the same model in the full line. With the increasing of HH, sensible modifications appear in the dynamics with of the defect with several possibilities for the output depending on the initial velocity and the boundary. Our results are confronted with the topological structure and linear stability analysis of kink, antikink and boundary solutions.

Keywords

Cite

@article{arxiv.1808.06703,
  title  = {Boundary scattering in the $\phi^{6}$ model},
  author = {Fred C. Lima and Fabiano C. Simas and K. Z. Nobrega and Adalto R. Gomes},
  journal= {arXiv preprint arXiv:1808.06703},
  year   = {2020}
}

Comments

32 pages, 18 figures. v2: significant extra material and new figures

R2 v1 2026-06-23T03:38:59.306Z