  We show that a multiply-quantized vortex line core can be energetically
stable in a harmonically trapped two-component atomic Bose-Einstein condensate.
The structure, in which the condensate component with the vortex line is
surrounded by the second component forming a vortex ring, can be identified as
a particlelike Skyrmion with a multiply-quantized winding number, and closely
resembles cosmic vortons.

Other Condensed Matter;High Energy Physics - Theory;Quantum Physics