Spacetime magnetic hopfions from internal excitations and braiding of skyrmions
Ross Knapman,
Timon Tausendpfund,
Sebastián A. Díaz
et al.
Abstract:Spatial topology endows topological solitons, such as skyrmions and hopfions, with fascinating dynamics. However, the temporal dimension has so far provided a passive stage on which topological solitons evolve. Here we construct spacetime magnetic hopfions: magnetic textures in two spatial dimensions that when excited by a time-periodic drive develop spacetime topology. We uncover two complementary construction routes using skyrmions by braiding their center of mass position and by controlling their internal l… Show more
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