Implosive Dynamics from Topological Quenches in Bose-Einstein Condensates

Abstract:We show numerically that a repulsive Bose-Einstein condensate can be driven into implosive dynamics by a direct topological quench. We first realize giant vortices by quasi-adiabatic phase imprinting, and then perform a sudden anti-imprint that cancels the accumulated winding in a single step, abruptly switching the condensate from a highly charged vortex state to the trivial sector. The resulting phase-density mismatch launches a rapid inward radial flow and produces a strong central density buildup, despite the repulsive interactions. After the first implosion, the dynamics evolves into circular nonlinear wave fronts that subsequently undergo breaking of azimuthal symmetry (axisymmetry) down to a polygonal one, whose shape is determined by the way the giant vortex is built. These results establish topological engineering as a new tool for studying implosive dynamics and symmetry-breaking instabilities in quantum fluids.

Quantum Gases (cond-mat.quant-gas); Quantum Physics (quant-ph)

arXiv:2604.17932 [cond-mat.quant-gas]

(or arXiv:2604.17932v2 [cond-mat.quant-gas] for this version)

https://doi.org/10.48550/arXiv.2604.17932 Focus to learn more arXiv-issued DOI via DataCite

Phys. Rev. A 114, 023318 (2026)

https://doi.org/10.1103/dw8h-cfnf Focus to learn more DOI(s) linking to related resources

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