Static skyrmions in (2+1)-dimensions
R. J. Cova, W. J. Zakrzewski
Abstract
In the spirit of previous papers, but using more general field configurations, the non-linear O(3) model in (2+1)-D, modified by the addition of both a potential-like term and a Skyrme-like term, is considered. The instanton solutions are numerically evolved in time and some of their stability properties studied. They are found to be stable, and a repulsive force is seen to exist among them. These results, which are restricted to the case of zero speed systems, confirm those obtained in previous investigations, in which a similar problem was studied for a different choice of the potential-like term.
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