Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/26024
Title: | On the topological charge of S O(2) gauged Skyrmions in 2 + 1 and 3 + 1 dimensions |
Author: | Navarro-Lerida, Francisco Radu, Eugen Tchrakian, D. H. |
Keywords: | Instantons Skyrmions Solitons Topological charge |
Issue Date: | 10-Apr-2019 |
Publisher: | Elsevier |
Abstract: | The question of the dependence of the topological charge q of a gauged Skyrmion, on the gauge field, is studied quantitatively. Two examples, both gauged with SO(2) are studied and contrasted: i) The O(3) model in 2+1 dimensions, and ii) The O(4) model in 3+1 dimensions. In case i), where the (usual) Chern–Simons (CS) term is present, the value of q changes sign, going through zero. This evolution is tracked by a parameter characterising the solutions in the given theory. In case ii), in which dimensions no CS density is available, the evolution of q is not observed. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/26024 |
DOI: | 10.1016/j.physletb.2019.02.011 |
ISSN: | 0370-2693 |
Appears in Collections: | CIDMA - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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1-s2.0-S0370269319301042-main.pdf | 357.14 kB | Adobe PDF | View/Open |
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