Bright solitary waves of atomic Bose-Einstein condensates under rotation

TL;DR

This paper investigates how rotation influences bright solitary waves in atomic Bose-Einstein condensates, demonstrating that rotation stabilizes these waves and increases the threshold for collapse.

Contribution

It introduces a variational approach assuming irrotational quadrupolar flow to analyze the stabilizing effect of rotation on bright solitary waves in BECs.

Findings

Rotation stabilizes bright solitary waves

Rotation raises the collapse threshold

Variational solutions in the rotating frame

Abstract

We analyse the rotation of bright solitary waves formed of atomic Bose-Einstein condensates with attractive atomic interactions. By employing a variational technique and assuming an irrotational quadrupolar flow field, we map out the variational solutions in the rotating frame. In particular, we show that rotation has a considerable stabilising effect on the system, significantly raising the critical threshold for collapse of the bright solitary waves.