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Implosive dynamics from topological quenches in Bose-Einstein condensates
Phys. Rev. A 114, 023318 – Published 20 August, 2026
DOI: https://doi.org/10.1103/dw8h-cfnf
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 quasiadiabatic 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 an effective tool for studying implosive dynamics and symmetry-breaking instabilities in quantum fluids.
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