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Abstract
We study the transverse self-structuring of cold atomic clouds with effective atomic interactions mediated by a coherent driving beam retroreflected 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 Ginzburg-Landau amplitude equations with real coefficients. 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.
Original language | English |
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Article number | 203201 |
Number of pages | 6 |
Journal | Physical Review Letters |
Volume | 126 |
Issue number | 20 |
DOIs | |
Publication status | Published - 21 May 2021 |
Keywords
- angular momentum of light
- cold atoms and matter waves
- nonlinear optics
- optomechanics
- pattern formation
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Dive into the research topics of 'Multiple self-organized phases and spatial solitons in cold atoms mediated by optical feedback'. Together they form a unique fingerprint.Projects
- 1 Finished
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Collective effects and optomechanics in ultra-cold matter (ColOpt) (H2020 MCSA ETN)
Ackemann, T. (Principal Investigator), Griffin, P. (Co-investigator), Oppo, G.-L. (Co-investigator), Robb, G. (Co-investigator) & Yao, A. (Co-investigator)
European Commission - Horizon Europe + H2020
1/01/17 → 31/12/20
Project: Research