The dynamics of aloof baby Skyrmions

Salmi, P.; Sutcliffe, P.M.

Abstract

The aloof baby Skyrme model is a (2+1)-dimensional theory with solitons that are lightly bound. It is a low-dimensional analogue of a similar Skyrme model in (3+1)-dimensions, where the lightly bound solitons have binding energies comparable to nuclei. A previous study of static solitons in the aloof baby Skyrme model revealed that multi-soliton bound states have a cluster structure, with constituents that preserve their individual identities due to the short-range repulsion and long-range attraction between solitons. Furthermore, there are many different local energy minima that are all well-described by a simple binary species particle model. In this paper we present the first results on soliton dynamics in the aloof baby Skyrme model. Numerical field theory simulations reveal that the lightly bound cluster structure results in a variety of exotic soliton scattering events that are novel in comparison to standard Skyrmion scattering. A dynamical version of the binary species point particle model is shown to provide a good qualitative description of the dynamics.

Citation

Salmi, P., & Sutcliffe, P. (2016). The dynamics of aloof baby Skyrmions. Journal of High Energy Physics, 2016(1), Article 145. https://doi.org/10.1007/jhep01%282016%29145

• Journal Article Type: Article
• Acceptance Date: Jan 9, 2016
• Online Publication Date: Jan 25, 2016
• Publication Date: Jan 25, 2016
• Deposit Date: Feb 15, 2016
• Publicly Available Date: Feb 15, 2016
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2016
• Issue: 1
• Article Number: 145
• DOI: https://doi.org/10.1007/jhep01%282016%29145
• Keywords: Solitons Monopoles and Instantons, Sigma Models.