Compact baby skyrmions
arXiv:0909.2505 · doi:10.1103/PhysRevD.80.105013
Abstract
For the baby Skyrme model with a specific potential, compacton solutions, i.e., configurations with a compact support and parabolic approach to the vacuum, are derived. Specifically, in the non-topological sector, we find spinning Q-balls and Q-shells, as well as peakons. Moreover, we obtain compact baby skyrmions with non-trivial topological charge. All these solutions may form stable multi-soliton configurations provided they are sufficiently separated.
23 pages, 17 figures, some comments and some references added