Kinks in a non-linear massive sigma model
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We describe the kink solitary waves of a massive non-linear sigma model with an ${\mathbb S}^2$ sphere as the target manifold. Our solutions form a moduli space of non-relativistic solitary waves in the long wavelength limit of ferromagnetic linear spin chains.
4 pages, 5 figuras, revtex4
4 pages, 5 figuras, revtex4