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Unwinding in Hopfion vortex bunches | | Juha Jäykkä
; Jarmo Hietarinta
; | | Date: |
8 Apr 2009 | | Abstract: | We investigate the behaviour of parallel Faddeev-Hopf vortices under energy
minimization in a system with physically relevant, but unusual boundary
conditions. The homotopy classification is no longer provided by the Hopf
invariant, but rather by the set of integer homotopy invariants proposed by
Pontrjagin. The nature of these invariants depends on the boundary conditions.
A set of tightly wound parallel vortices of the usual Hopfion structure is
observed to form a bunch of intertwined vortices or unwind completely,
depending on the boundary conditions. | | Source: | arXiv, 0904.1305 | | Services: | Forum | Review | PDF | Favorites | |
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