794 citations · 6.5k across the 136 of their papers we have counts for
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Topologically Protected Vortex Knots in an Experimentally Realizable System
Hermanni Rajamäki, Toni Annala, Mikko Möttönen
Ordered media often support vortex structures with intriguing topological properties. Here, we investigate non-Abelian vortices in tetrahedral order, which appear in the cyclic pha…
Topologically protected vortex knots and links
Toni Annala, Roberto Zamora-Zamora, Mikko Möttönen
We propose a class of tangled vortex structures, tied from non-Abelian topological vortices, which are immune against decaying through local reconnections and strand crossings that…
Charge ambiguity and splitting of monopoles
Toni Annala, Mikko Möttönen
This paper is dedicated to studying various aspects of topological defects, appearing in mean-field theory treatments of physical systems such as ultracold atomic gases and gauge f…
Controlled creation of a singular spinor vortex by circumventing the Dirac belt trick
L. S. Weiss, M. O. Borgh, A. Blinova +4
Persistent topological defects and textures are particularly dramatic consequences of superfluidity. Among the most fascinating examples are the singular vortices arising from the…
Decay of a Quantum Knot
T. Ollikainen, A. Blinova, M. Möttönen +1
We experimentally study the dynamics of quantum knots in a uniform magnetic field in spin-1 Bose-Einstein condensates. The knot is created in the polar magnetic phase, which rapidl…
Three-dimensional skyrmions in spin-2 Bose-Einstein condensates
K. Tiurev, T. Ollikainen, P. Kuopanportti +3
We introduce topologically stable three-dimensional skyrmions in the cyclic and biaxial nematic phases of a spin-2 Bose-Einstein condensate. These skyrmions exhibit exceptionally h…