20 citations · 79 across the 13 of their papers we have counts for
14 papers
Hyperbolic monopole-type solutions in Yang-Mills theory
Yuki Amari
We construct -invariant solutions of the pure Yang-Mills theory on four-dimensional Euclidean space using the Cho-Faddeev-Niemi decomposition and a harmonic map from $…
Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization
Sven Bjarke Gudnason, Yuki Amari, Muneto Nitta
Absorption of an isolated bulk magnetic skyrmion into an empty domain wall in a chiral ferromagnetic system is studied using the Landau-Lifshitz-Gilbert equation with and without t…
Spin Statistics and Surgeries of Topological Solitons in QCD Matter in Magnetic Field
Yuki Amari, Muneto Nitta, Ryo Yokokura
The ground state of QCD with two flavors (up and down quarks) at finite baryon density in sufficiently strong magnetic field is in a form of either a chiral soliton lattice(CSL), a…
Creation of domain-wall Skyrmions in chiral magnets
Sven Bjarke Gudnason, Yuki Amari, Muneto Nitta
We study the capture of a magnetic Skyrmion into a domain wall (DW) structure in chiral magnets and find that in the respective ground states of the DW and the Skyrmion, they repel…
String junctions in flag manifold sigma model
Yuki Amari, Toshiaki Fujimori, Muneto Nitta +1
We numerically construct a stable three-string junction of Y-shape in a flag manifold nonlinear sigma model on .
Isospinning solitons
Yuki Amari, Sergei Antsipovich, Muneto Nitta +1
We study stationary rotating topological solitons in (2+1)-dimensional non-linear sigma model with a stabilizing potential term. We find families of $U(1)\times U(…
Topological solitons stabilized by a background gauge field and soliton-anti-soliton asymmetry
Yuki Amari, Minoru Eto, Muneto Nitta
We study topological lumps supported by the second homotopy group in a gauged model without any potential term coupled with a (non)dynamical $U…
Spectral flow of fermions in the $\CP^2$ (anti-)instanton, and the sphaleron with vanishing topological charge
Yuki Amari, Nobuyuki Sawado, Shintaro Yamamoto
The spectral flow is ubiquitous in the physics of soliton-fermion interacting systems. We study the spectral flows related to a continuous deformation of background soliton solutio…
Domain-wall skyrmion chain and domain-wall bimerons in chiral magnets
Yuki Amari, Calum Ross, Muneto Nitta
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 field…
Chiral Magnets from String Theory
Yuki Amari, Muneto Nitta
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 soliton lattic…
Fractional Skyrmion molecules in a model
Yutaka Akagi, Yuki Amari, Sven Bjarke Gudnason +2
We study fractional Skyrmions in a baby Skyrme model with a generalization of the easy-plane potential. By numerical methods, we find stable, metastable, and unstab…
BPS Sphalerons in the Non-Linear Sigma Model
Yuki Amari, Nobuyuki Sawado
We construct static and also time-dependent solutions in a non-linear sigma model with target space being the flag manifold on the four dimensional Minkowski spa…
Collective coordinate quantization and spin statistics of the solitons in the Skyrme-Faddeev model
Yuki Amari, Pawel Klimas, Nobuyuki Sawado
The extended Skyrme-Faddeev model possesses planar soliton solutions. We consider quantum aspects of the solutions applying collective coordinate quantization in re…
Potentials and the vortex solutions in the Skyrme-Faddeev model
Yuki Amari, Pawel Klimas, Nobuyuki Sawado +1
The extended Skyrme-Faddeev model possesses vortex solutions in a (3+1) dimensional Minkowski space-time with target space . They have finite energy per unit of length and co…