3D van der Waals sigma-model and topological excitations with logarithmic energy

Details 3D van der Waals sigma-model and topological excitations with logarithmic energy 3D van der Waals sigma-model and topological excitations with logarithmic energy

1999-09-04

arxiv.org/abs/hep-th/9909023v1

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, a talk given at seminar "Properties and Dynamics of Liquid Crystals", 23 August, MPIPKS, Dresden, Germany

Scientific paper

The 3D vector van der Waals (or conformal) nonlinear sigma-model is proposed.
It is shown that it has the "hedgehog"-like topological excitations with
logarithmic energy. Their "neutral" configurations have nontrivial topological
structures described by Hopf invariant. A possible influence of these
excitations on the properties of the model are discussed.

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