Collision dynamics of Skyrmions in a two-component Bose-Einstein condensate

TL;DR

This paper numerically investigates how Skyrmions in a two-component Bose-Einstein condensate collide, revealing that their interactions depend on impact parameters and phases, leading to various scattering outcomes.

Contribution

It provides a detailed numerical analysis of Skyrmion collision dynamics in two-component Bose-Einstein condensates, highlighting phase and impact parameter effects.

Findings

Skyrmions unite and scatter into various states upon collision.

Head-on collisions with unit winding number result in scattering.

Collision outcomes depend on impact parameter and relative phase.

Abstract

The dynamics of Skyrmions in a two-component Bose-Einstein condensate are numerically investigated in the mean-field theory. When two Skyrmions collide with each other, they are first united and then scattered into various states. For head-on collisions, Skyrmions with unit winding number are scattered. The collision dynamics with an impact parameter are shown to depend on the relative phase. These dynamic processes are characterized by integer winding numbers.