Topological phase transitions in the gauged BPS baby Skyrme model

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

Abstract

We demonstrate that the gauged BPS baby Skyrme model with a double vacuum potential allows for phase transitions from a non-solitonic to a solitonic phase, where the latter corresponds to a ferromagnetic liquid. Such a transition can be generated by increasing the external pressure P or by turning on an external magnetic field H. As a consequence, the topological phase where gauged BPS baby skyrmions exist, is a higher density phase. For smaller densities, obtained for smaller values of P and H, a phase without solitons is reached. We find the critical line in the P, H parameter space. Furthermore, in the soliton phase, we find the equation of state for the baby skyrmion matter V = V(P,H) at zero temperature, where V is the “volume”, i.e., area of the solitons.

Citation

Adam, C., Naya, C., Romanczukiewicz, T., Sanchez-Guillen, J., & Wereszczynski, A. (2015). Topological phase transitions in the gauged BPS baby Skyrme model. Journal of High Energy Physics, 2015(5), Article 155. https://doi.org/10.1007/jhep05%282015%29155

• Journal Article Type: Article
• Acceptance Date: Apr 30, 2015
• Online Publication Date: May 29, 2015
• Publication Date: May 29, 2015
• Deposit Date: Oct 30, 2017
• Publicly Available Date: Mar 21, 2018
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2015
• Issue: 5
• Article Number: 155
• DOI: https://doi.org/10.1007/jhep05%282015%29155
• Public URL: https://durham-repository.worktribe.com/output/1345329