CP2 skyrmions and skyrmion crystals in realistic quantum magnets

H Zhang, Z Wang, D Dahlbom, K Barros… - Nature …, 2023 - nature.com
Magnetic skyrmions are nanoscale topological textures that have been recently observed in
different families of quantum magnets. These objects are called CP1 skyrmions because …

Isolated skyrmions in the nonlinear sigma model with a Dzyaloshinskii-Moriya type interaction

Y Akagi, Y Amari, N Sawado, Y Shnir - Physical Review D, 2021 - APS
We study two dimensional soliton solutions in the CP 2 nonlinear sigma model with a
Dzyaloshinskii-Moriya type interaction. First, we derive such a model as a continuous limit of …

Fractional Skyrmion molecules in a ℂPN− 1 model

Y Akagi, Y Amari, SB Gudnason, M Nitta… - Journal of High Energy …, 2021 - Springer
A bstract We study fractional Skyrmions in a ℂP 2 baby Skyrme model with a generalization
of the easy-plane potential. By numerical methods, we find stable, metastable, and unstable …

Compact -balls and -shells in -type models

P Klimas, LR Livramento - Physical Review D, 2017 - APS
We show that the CPN model with an odd number of scalar fields and a V-shaped potential
possesses some finite energy compact solutions in the form of Q-balls and Q-shells. Such …

Isospinning solitons

Y Amari, S Antsipovich, M Nitta, Y Shnir - Physical Review D, 2024 - APS
We study stationary rotating topological solitons in a (2+ 1)-dimensional CP 2 nonlinear
sigma model with a stabilizing potential term. We find families of U (1)× U (1) symmetric …

Gauged compact Q-balls and Q-shells in a multi-component model

P Klimas, LC Kubaski, N Sawado, S Yanai - arXiv preprint arXiv …, 2023 - arxiv.org
We study a multicomponent $ CP^ N $ model's scalar electrodynamics. The model contains
Q-balls/shells, which are non-topological compact solitons with time dependency …

Isospinning solitons

Y Amari, S Antsipovich, M Nitta, Y Shnir - arXiv preprint arXiv:2405.10114, 2024 - arxiv.org
We study stationary rotating topological solitons in (2+ 1)-dimensional ${\mathbb C} P^ 2$
non-linear sigma model with a stabilizing potential term. We find families of $ U (1)\times U …

Statistical nature of Skyrme-Faddeev models in 2+ 1 dimensions and normalizable fermions

Y Amari, M Iida, N Sawado - Theoretical and Mathematical Physics, 2019 - Springer
Abstract The Skyrme-Faddeev model has planar soliton solutions with the target space ℂ
PN. An Abelian Chern-Simons term (the Hopf term) in the Lagrangian of the model plays a …

Collective coordinate quantization and spin statistics of the solitons in the Skyrme-Faddeev model

Y Amari, P Klimas, N Sawado - Physical Review D, 2016 - APS
The CPN extended Skyrme-Faddeev model possesses planar soliton solutions. We
consider quantum aspects of the solutions applying collective coordinate quantization in …

Fractional Skyrmion molecules in a ℂPN− 1 model

A Yutaka, A Yuki, GS Bjarke… - Journal of High …, 2021 - search.proquest.com
We study fractional Skyrmions in a ℂP 2 baby Skyrme model with a generalization of the
easy-plane potential. By numerical methods, we find stable, metastable, and unstable …