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- Title
One-Dimensional Gap Soliton Molecules and Clusters in Optical Lattice-Trapped Coherently Atomic Ensembles via Electromagnetically Induced Transparency.
- Authors
Chen, Zhiming; Xie, Hongqiang; Zhou, Qi; Zeng, Jianhua
- Abstract
In past years, optical lattices have been demonstrated as an excellent platform for making, understanding, and controlling quantum matters at nonlinear and fundamental quantum levels. Shrinking experimental observations include matter-wave gap solitons created in ultracold quantum degenerate gases, such as Bose–Einstein condensates with repulsive interaction. In this paper, we theoretically and numerically study the formation of one-dimensional gap soliton molecules and clusters in ultracold coherent atom ensembles under electromagnetically induced transparency conditions and trapped by an optical lattice. In numerics, both linear stability analysis and direct perturbed simulations are combined to identify the stability and instability of the localized gap modes, stressing the wide stability region within the first finite gap. The results predicted here may be confirmed in ultracold atom experiments, providing detailed insight into the higher-order localized gap modes of ultracold bosonic atoms under the quantum coherent effect called electromagnetically induced transparency.
- Subjects
OPTICAL lattices; BOSE-Einstein condensation; QUANTUM gases; MOLECULES; ULTRACOLD molecules; BAND gaps
- Publication
Crystals (2073-4352), 2024, Vol 14, Issue 1, p36
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst14010036