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6 papers · 2 filters
Dielectric Skyrmions
Sven Bjarke Gudnason
We consider the dielectric Skyrme model proposed recently, with and without the addition of the standard pion mass term. Then we write down Bogomol'nyi-type energy bounds for both…
1/2-BPS vortex strings in supersymmetric gauge theories
Sven Bjarke Gudnason, Minoru Eto, Muneto Nitta
Strings in supersymmetric gauge theories with hypermultiplets are studied in the generic setting of an arbitrary Fayet-Iliopoulos triplet of para…
Linked vortices as baryons in the miscible BEC-Skyrme model
Sven Bjarke Gudnason, Muneto Nitta
We introduce a variation of the Bose-Einstein condensate(BEC)-Skyrme model, with an altered potential for miscible BECs that gives rise to two physical vortex strings. In the groun…
Near-BPS baby Skyrmions
Sven Bjarke Gudnason, Marco Barsanti, Stefano Bolognesi
We consider the baby-Skyrme model in the regime close to the so-called restricted baby-Skyrme model, which is a BPS model with area-preserving diffeomorphism invariance. The pertur…
Realistic classical binding energies in the -Skyrme model
Sven Bjarke Gudnason, James Martin Speight
An omega-meson extension of the Skyrme model - without the Skyrme term but including the pion mass - first considered by Adkins and Nappi is studied in detail for baryon numbers 1…
Linking number of vortices as baryon number
Sven Bjarke Gudnason, Muneto Nitta
We show that the topological degree of a Skyrmion field is the same as the Hopf charge of the field under the Hopf map and thus equals the linking number of the preimages of two po…