Spontaneous emergence of free-space optical and atomic patterns

TL;DR

This paper reports the observation of spontaneous pattern formation in coupled optical-atomic systems, leading to self-organized structures and cooling effects in cold atoms driven by free-space lasers.

Contribution

It demonstrates the spontaneous emergence of complex 3D atomic and optical patterns in cold atom systems, revealing new self-organization phenomena at low light intensities.

Findings

Self-organized multimode structures in cold atoms

Spontaneous 3D Sisyphus cooling at low light intensities

Atomic structures on sub- and super-wavelength scales

Abstract

The spontaneous formation of patterns in dynamical systems is a rich phenomenon that transcends scientific boundaries. Here, we report our observation of coupled optical-atomic pattern formation, which results in the creation of self-organized, multimode structures in free-space laser-driven cold atoms. We show that this process gives rise to spontaneous three-dimensional Sisyphus cooling even at very low light intensities and the emergence of self-organized atomic structures on both sub- and super-wavelength scales.