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Fractional Skyrmions and their molecules
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Chinese Acad Sci, Peoples R China.
2015 (English)In: Physical Review D, ISSN 1550-7998, Vol. 91, no 8, 085040Article in journal (Refereed) Published
Abstract [en]

We study a Skyrme-type model with a quadratic potential for a field with S-2 vacua. We consider two flavors of the model, the first is the Skyrme model and the second has a sixth-order derivative term instead of the Skyrme term; both with the added quadratic potential. The model contains molecules of half Skyrmions, each of them is a global (anti)monopole with baryon number 1/2. We numerically construct solutions with baryon numbers one through six, and find stable solutions which look like beads on rings. We also construct a molecule with fractional Skyrmions having the baryon numbers 1/3 + 2/3, by adding a linear potential term.

Place, publisher, year, edition, pages
2015. Vol. 91, no 8, 085040
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-171691DOI: 10.1103/PhysRevD.91.085040ISI: 000353462600005OAI: diva2:844931

QC 20150810

Available from: 2015-08-10 Created: 2015-08-05 Last updated: 2015-08-10Bibliographically approved

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Gudnason, Sven Bjarke
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