# Dark-dark solitons and modulational instability in miscible two-component Bose-Einstein condensates

@article{Hoefer2011DarkdarkSA, title={Dark-dark solitons and modulational instability in miscible two-component Bose-Einstein condensates}, author={Mark A. Hoefer and J. J. Chang and Chris Hamner and P. Engels}, journal={Physical Review A}, year={2011}, volume={84}, pages={041605} }

We investigate the dynamics of two miscible superfluids experiencing fast counterflow in a narrow channel. The superfluids are formed by two distinguishable components of a trapped dilute-gas Bose-Einstein condensate (BEC). The onset of counterflow-induced modulational instability throughout the cloud is observed and shown to lead to the proliferation of dark-dark vector solitons. These solitons do not exist in single-component systems, exhibit intriguing beating dynamics, and can experience a…

## 93 Citations

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