Fermions in the presence of topological structures under geometric constrictions

TL;DR

This paper investigates how fermion spectra are affected by topological kink structures and geometric constrictions in two-dimensional models, revealing potential applications in nanoscale electronic devices.

Contribution

It introduces models where the internal structure of kinks responds to geometric constrictions, showing how fermion spectra are modified by these effects.

Findings

Fermion spectra are altered by the presence of geometric constrictions.

Internal kink structure responds to geometric changes, affecting fermion interactions.

Potential for designing nanoscale electronic devices with novel properties.

Abstract

In this work we study modifications of the spectrum of fermions interacting with kinklike structures in two-dimensional spacetime. We consider the Yukawa coupling between fermions and scalar fields that engender nontrivial internal structure and investigate how the fermion spectra change in terms of the parameters that control the kinklike configuration and the Yukawa coupling. We consider models that allow the internal structure of the kinklike solution to respond to the presence of a geometrical constriction, and show the fermion spectra may also appear directly affected by the constriction. The main results are of current interest and may be used to propose the construction of electronic devices capable of engendering new effects at the nanometric scale.