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We present a combined experimental and theoretical study of regular dark-bright soliton arrays in a two-component atomic Bose-Einstein condensate. We demonstrate a microwave pulse-based winding technique which allows for a tunable number of solitary waves en route to observing their dynamics, quantified through Fourier analysis of the density. We characterize different winding density regimes by the observed dynamics including the decay and revival of the Fourier peaks, the emergence of dark-antidark solitons, and disordering of the soliton array. The experimental results are in good agreement with three-dimensional numerical computations of the underlying mean-field theory. These observations open a window into the study of soliton crystals and the dynamics, excitations, and lifetimes of such patterns.
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Mossman, S.; Katsimiga, G. C.; Mistakidis, S. I.; Romero-Ros, A.; Bersano, T. M.; Schmelcher, P.; Kevrekidis, Panayotis G.; and Engels, P., "Dense dark-bright soliton arrays in a two-component Bose-Einstein condensate" (2022). arXiv Preprint. 1343.