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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/132334
Transverse Josephson vortices and localized states in stacked Bose-Einstein condensates
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The stacks of Bose-Einstein condensates coupled by long Josephson junctions present a richphenomenology feasible to experimental realization and specially suitable for technologicalapplications as the nonlinear-optics and superconducting analogs have already proved. Among this,we show that transverse Bloch waves excited in arrays of one-dimensional coupled condensates cancarry tunneling superflows whose dynamical stability depends on the quasimomentum. Across thestacks with periodic boundary conditions, forming closed ring-shaped systems, such Bloch states yieldtransverse Josephson vortices with a generic non-integer circulation in units ofh/m. Additionally, thesuperpositions of degenerate linear Bloch waves can suppress the supercurrents and give rise tofamilies of nonlinear standing-wave states with strong(transverse)spatial localization. Stable states ofthis type can also be found infinite size systems.
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GIL GRANADOS, Juan Antonio, et al. Transverse Josephson vortices and localized states in stacked Bose-Einstein condensates. New Journal of Physics. 2019. Vol. 21, num. 043036. ISSN 1367-2630. [consulted: 8 of June of 2026]. Available at: https://hdl.handle.net/2445/132334