论文标题

共旋转性手性磁空旁边图附近

Co-rotational chiral magnetic skyrmions near harmonic maps

论文作者

Gustafson, Stephen, Wang, Li

论文摘要

手性磁空是拓扑孤子,具有显着的物理兴趣,是由微磁能描述的铁磁体引起的,包括手性(Dzyaloshinskii-Moriya)相互作用项。我们表明,对于小手性相互作用,与共旋转对称性的$ \ mathbb {r}^2 $上的Skyrmions接近谐波图,并在差异上证明了精确的界限。这些边界的一种应用是精确的能量渐近学。另一个(在另一项工作中)是李·梅尔彻最近的天空稳定性结果的另一种定量证明。

Chiral magnetic skyrmions are topological solitons, of significant physical interest, arising in ferromagnets described by a micromagnetic energy including a chiral (Dzyaloshinskii-Moriya) interaction term. We show that for small chiral interaction, the skyrmions on $\mathbb{R}^2$ with co-rotational symmetry are close to harmonic maps, and prove precise bounds on the differences. One application of these bounds is precise energy asymptotics. Another (pursued in a separate work) is an alternate, quantitative proof of the recent skyrmion stability result of Li-Melcher.

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