Quantized vortices and quantum turbulence

TL;DR

This paper reviews recent advances in understanding quantized vortices and quantum turbulence in atomic Bose-Einstein condensates, highlighting their visualization, controllability, and relevance to low-temperature physics.

Contribution

It provides a comprehensive overview of vortex dynamics, instabilities, and turbulence in BECs, emphasizing experimental advantages over superfluid helium.

Findings

Quantized vortices can be directly visualized in BECs.

Interaction parameters in BECs can be tuned via Feshbach resonance.

Quantum turbulence in BECs shares features with superfluid helium turbulence.

Abstract

We review recent important topics in quantized vortices and quantum turbulence in atomic Bose--Einstein condensates (BECs). They have previously been studied for a long time in superfluid helium. Quantum turbulence is currently one of the most important topics in low-temperature physics. Atomic BECs have two distinct advantages over liquid helium for investigating such topics: quantized vortices can be directly visualized and the interaction parameters can be controlled by the Feshbach resonance. A general introduction is followed by a description of the dynamics of quantized vortices, hydrodynamic instability, and quantum turbulence in atomic BECs.