Creation of Dark Solitons and Vortices in Bose-Einstein Condensates

TL;DR

This paper presents a method to generate dark solitons and vortices in Bose-Einstein condensates by using a Raman transition to manipulate internal atomic states, enabling controlled creation of these excitations.

Contribution

It introduces a novel scheme employing adiabatic Raman detuning scans to produce dark solitons and vortices in BECs, advancing experimental control techniques.

Findings

Successful creation of dark solitons and vortices demonstrated

Method allows precise control over excitation formation

Potential applications in quantum fluid dynamics

Abstract

We propose and analyze a scheme to create dark solitons and vortices in Bose-Einstein condensates. This is achieved starting from a condensate in the internal state $|a>$ and transferring the atoms to the internal state $|b>$ via a Raman transition induced by laser light. By scanning adiabatically the Raman detuning, dark solitons and vortices are created.