Change search
ReferencesLink to record
Permanent link

Direct link
Baryonic torii: Toroidal baryons in a generalized Skyrme model
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Stockholm Univ, Sweden.
2015 (English)In: Physical Review D, ISSN 1550-7998, Vol. 91, no 4, 045027Article in journal (Refereed) Published
Abstract [en]

We study a Skyrme-type model with a potential term motivated by Bose-Einstein condensates (BECs), which we call the BEC Skyrme model. 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 BEC-motivated potential. The model contains toroidally shaped Skyrmions, and they are characterized by two integers P and Q, representing the winding numbers of two complex scalar fields along the toroidal and poloidal cycles of the torus, respectively. The baryon number is B = PQ. We find stable Skyrmion solutions for P = 1, 2, 3, 4, 5 with Q = 1, while for P = 6 and Q = 1, it is only metastable. We further find that configurations with higher Q > 1 are all unstable and split into Q configurations with Q = 1. Finally we discover a phase transition, possibly of first order, in the mass parameter of the potential under study.

Place, publisher, year, edition, pages
2015. Vol. 91, no 4, 045027
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:kth:diva-161957DOI: 10.1103/PhysRevD.91.045027ISI: 000349787400004ScopusID: 2-s2.0-84924301801OAI: diva2:800927

QC 20150408

Available from: 2015-04-08 Created: 2015-03-20 Last updated: 2015-04-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Gudnason, Sven Bjarke
By organisation
Nordic Institute for Theoretical Physics NORDITA
In the same journal
Physical Review D
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link