Energy bounds of linked vortex states
A. P. Protogenov, V. A. Verbus
Institute of Applied Physics of the RAS, 603950 Nizhny Novgorod, Russia
Institute for Physics of Microstructures of the RAS, 603950 Nizhny Novgorod, Russia
PACS: 11.10.Lm, 11.15.Tk, 11.27.+d, 74.20.-z
Energy bounds of knotted and linked vortex states in a charged
two-component system are considered. It is shown that a set of
local minima of free energy contains new classes of universality.
When the mutual linking number of vector order parameter vortex lines
is less than the Hopf invariant, these states have lower-lying energies.