Symbiotic Solitons in Heteronuclear Multicomponent Bose-Einstein condensates

TL;DR

This paper demonstrates the existence and robustness of bright solitons in heteronuclear multicomponent Bose-Einstein condensates with specific interaction properties, highlighting their potential controllability and stability.

Contribution

It introduces the concept of bright solitons in heteronuclear multicomponent BECs with repulsive and attractive interactions, and discusses their stability and generation mechanisms.

Findings

Bright solitons exist in the specified BEC systems.

Solitons are robust to perturbations and collisions.

Mechanism of modulational instability can generate solitons.

Abstract

We show that bright solitons exist in quasi-one dimensional heteronuclear multicomponent Bose-Einstein condensates with repulsive self-interaction and attractive inter-species interaction. They are remarkably robust to perturbations of initial data and collisions and can be generated by the mechanism of modulational instability. Some possibilities for control and the behavior of the system in three dimensions are also discussed.