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arXiv 1002.0851hep-thmath-phmath.MPnlin.SI
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限制型Baby Skyrme模型的研究

Investigation of restricted baby Skyrme models

C. Adam, T. Romanczukiewicz, J. Sanchez-Guillen, A. Wereszczynski

摘要:

婴儿Skyrme模型的四次和潜在的条款只组成的限制进行了详细的调查,为广泛的潜力。此外,它的性质进行了比较与相应的全婴儿Skyrme模型。我们发现,拓扑(电荷)以及几何(核/壳形状)的婴儿skyrmions的功能已被捕获的限制模型的孤子解。此外,我们发现在限制模型中孤子的紧或非紧性质,一方面,和多skyrmions的存在或不存在的满婴儿Skyrme模型,另一方面之间的一个巧合。

英文摘要:

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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