Multiple self-organized phases and spatial solitons in cold atoms mediated by optical feedback
Abstract
We study the transverse self-structuring of a cloud of cold atoms with effective atomic interactions mediated by a coherent driving beam retro-reflected by means of a single mirror. The resulting self-structuring due to optomechanical forces is much richer than that of an effective-Kerr medium, displaying hexagonal, stripe and honeycomb phases depending on the interaction strength parametrized by the linear susceptibility. Phase domains are described by real Ginzburg-Landau amplitude equations. In the stripe phase the system recovers inversion symmetry. Moreover, the subcritical character of the honeycomb phase allows for light-density feedback solitons functioning as self-sustained dark atomic traps with motion controlled by phase gradients in the driving beam.
Keywords
Cite
@article{arxiv.2102.01819,
title = {Multiple self-organized phases and spatial solitons in cold atoms mediated by optical feedback},
author = {Giuseppe Baio and Gordon R. M. Robb and Alison M. Yao and Gian-Luca Oppo and Thorsten Ackemann},
journal= {arXiv preprint arXiv:2102.01819},
year = {2021}
}
Comments
6 pages, 6 figures