Skyrmion–antiskyrmion pair creation and annihilation in a cubic chiral magnet

F Zheng, NS Kiselev, L Yang, VM Kuchkin… - Nature Physics, 2022 - nature.com
A fundamental property of particles and antiparticles (such as electrons and positrons,
respectively) is their ability to annihilate one another. A similar behaviour is predicted for …

Magnetic skyrmions, chiral kinks, and holomorphic functions

VM Kuchkin, B Barton-Singer, FN Rybakov, S Blügel… - Physical Review B, 2020 - APS
We present a novel approach to understanding the extraordinary diversity of magnetic
skyrmion solutions. Our approach combines an original classification scheme with efficient …

Chiral magnets from string theory

Y Amari, M Nitta - Journal of High Energy Physics, 2023 - Springer
A bstract Chiral magnets with the Dzyaloshinskii-Moriya (DM) interaction have received
quite an intensive focus in condensed matter physics because of the presence of a chiral …

Domain-wall skyrmions in chiral magnets

C Ross, M Nitta - Physical Review B, 2023 - APS
Domain-wall skyrmions are skyrmions trapped inside a domain wall. We investigate domain-
wall skyrmions in chiral magnets using a fully analytic approach. Treating the Dzyaloshinskii …

Building paraxial optical skyrmions using rational maps

C Cisowski, C Ross… - Advanced Photonics …, 2023 - Wiley Online Library
A simple mathematical expression based on rational maps to describe all optical paraxial
skyrmion known to date, including Néel‐type and Bloch‐type skyrmions, bimerons, and anti …

Topological dynamical quantum phase transition in a quantum skyrmion phase

V Vijayan, L Chotorlishvili, A Ernst, SSP Parkin… - Physical Review B, 2023 - APS
The quantum skyrmionic phase is modeled in a two-dimensional helical spin lattice. This
topological skyrmionic phase retains its nature in a large parameter space before moving to …

Relations among topological solitons

M Nitta - Physical Review D, 2022 - APS
We clarify relations among topological solitons in various dimensions: a domain wall, non-
Abelian vortex, magnetic monopole, and Yang-Mills instanton, together with a (non-Abelian) …

Domain-wall skyrmion chain and domain-wall bimerons in chiral magnets

Y Amari, C Ross, M Nitta - Physical Review B, 2024 - APS
We construct domain-wall skyrmion chains and domain-wall bimerons in chiral magnets with
an out-of-plane easy-axis anisotropy and without a Zeeman term coupling to a magnetic …

Solvable self-dual impurity models

C Adam, K Oles, JM Queiruga… - Journal of High Energy …, 2019 - Springer
A bstract We find a family of (half) self-dual impurity models such that the self-dual (BPS)
sector is exactly solvable, for any spatial distribution of the impurity, both in the topologically …

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 …