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Dynamical Instability of 3d Stationary and Traveling Planar Dark Solitons



Ian Spielman, Amilson R. Fritsch, T. Mithun, Panayotis Kevrekidis


Here we revisit the topic of stationary and propagating solitonic excitations in self-repulsive three-dimensional Bose-Einstein condensates by quantitatively comparing theoretical analysis and associated numerical computations with our experimental results. Using fully 3d numerical simulations, we explore the existence, stability and evolution dynamics of such dark solitary waves, as well as their instability-induced decay products including solitonic vortices and vortex rings. In the trapped case and with no adjustable parameters, our numerical findings are in reasonable correspondence with experimentally observed coherent structures. Without a longitudinal trap we identify numerically exact traveling solutions and quantify how their transverse destabilization threshold changes as a function of the solitary wave speed.
Journal of Physics: Condensed Matter


soliton, BEC, vortex ring, decay


Spielman, I. , Fritsch, A. , Mithun, T. and Kevrekidis, P. (2022), Dynamical Instability of 3d Stationary and Traveling Planar Dark Solitons, Journal of Physics: Condensed Matter, [online], (Accessed June 12, 2024)


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Created November 9, 2022, Updated November 29, 2022