Publications at the Riemann Center

Exact BPS bound for noncommutative baby Skyrmions

authored by
Andrei Domrin, Olaf Lechtenfeld, Román Linares, Marco Maceda
Abstract

The noncommutative baby Skyrme model is a Moyal deformation of the two-dimensional sigma model plus a Skyrme term, with a group-valued or Grassmannian target. Exact abelian solitonic solutions have been identified analytically in this model, with a singular commutative limit. Inside any given Grassmannian, we establish a BPS bound for the energy functional, which is saturated by these baby Skyrmions. This asserts their stability for unit charge, as we also test in second-order perturbation theory.

Organisation(s)
Institut für Theoretische Physik
Riemann Center for Geometry and Physics
External Organisation(s)
Lomonosov Moscow State University
Universidad Autonoma Metropolitana (UAM)
Type
Artikel
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
727
Pages
303-307
No. of pages
5
ISSN
0370-2693
Publication date
25.11.2013
Publication status
Veröffentlicht
Peer reviewed
Yes
ASJC Scopus Sachgebiete
Kern- und Hochenergiephysik
Electronic version(s)
https://doi.org/10.1016/j.physletb.2013.10.023 (Access: Offen)