Investigation of restricted baby Skyrme models

Details Investigation of restricted baby Skyrme models Investigation of restricted baby Skyrme models

2010-02-03

arxiv.org/abs/1002.0851v2

Phys.Rev.D81:085007,2010

Physics

High Energy Physics

High Energy Physics - Theory

latex, 18 pages, 2 figures; some typos corrected

Scientific paper

10.1103/PhysRevD.81.085007

A restriction of the baby Skyrme model consisting of the quartic and potential terms only is investigated in detail for a wide range of potentials. Further, its properties are compared with those of the corresponding full baby Skyrme models. We find that topological (charge) as well as geometrical (nucleus/shell shape) features of baby skyrmions are captured already by the soliton solutions of the restricted model. Further, we find a coincidence between the compact or non-compact nature of solitons in the restricted model, on the one hand, and the existence or non-existence of multi-skyrmions in the full baby Skyrme model, on the other hand.

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