Stable bright solitons in two-component Bose-Einstein condensates

TL;DR

This paper explores the existence and stability of two-dimensional bright soliton pairs in binary Bose-Einstein condensates with various interatomic interactions, using variational and numerical methods.

Contribution

It provides a comprehensive analysis of stationary states and stability regions for 2D soliton pairs in mixed atomic interactions, advancing understanding of multi-component BECs.

Findings

Identified stability regions for soliton pairs with different interatomic interactions

Demonstrated the existence of stable 2D bright soliton pairs in binary BECs

Analyzed stationary states using variational and numerical approaches

Abstract

Two-dimensional (2D) fundamental soliton-soliton pairs are investigated in binary mixtures of Bose-Einstein condensates with attractive interactions between atoms of the same type. Both attractive and repulsive interactions between atoms of different type are considered. The general properties of the stationary states are investigated variationally and numerically, and the stability regions of the soliton-soliton pairs are determined.