3 papers
cond-mat.mes-hall2025
Domain Wall Networks as Skyrmion Crystals in Chiral Magnets
Seungho Lee, Toshiaki Fujimori, Muneto Nitta +1
We theoretically investigate the ground states of a chiral magnet with a square anisotropy and show that it supports domain wall networks as stable ground states. A domain wall jun…
hep-ph2025
Exact-WKB Analysis of Two-level Floquet Systems
Toshiaki Fujimori, Syo Kamata, Tatsuhiro Misumi +2
We explore the application of the exact Wentzel-Kramers-Brillouin (WKB) analysis to two-level Floquet systems and establish a systematic procedure to calculate the quasi-energy and…
hep-th2025
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 .