Controllable soliton emission from a Bose-Einstein condensate

TL;DR

This paper demonstrates a method to controllably emit matter-wave solitons from a Bose-Einstein condensate using spatial variations in scattering length, enabling a new atomic soliton source without altering the trap.

Contribution

It introduces a novel approach for generating and controlling matter-wave solitons via spatially varying interactions in a BEC, with analytical parameters for experimental realization.

Findings

Successful numerical simulation of controlled soliton emission.

Formation of robust matter-wave solitons post-emission.

Analytical framework for experimental parameter setup.

Abstract

We demonstrate, through numerical simulations, the controllable emission of matter-wave bursts from a Bose-Einstein Condensate in a shallow optical dipole trap. The process is triggered by spatial variations of the scattering length along the trapping axis. In our approach, the outcoupling mechanism are atom-atom interactions and thus, the trap remains unaltered. Once emitted, the matter wave forms a robust soliton. We calculate analytically the parameters for the experimental implementation of this atomic soliton machine gun.