5 papers
Topological Charge Asymmetry in a Skyrmion-Fermion Coupled System
Yuki Amari, Nobuyuki Sawado, Shintaro Yamamoto
Topology plays a central role in classifying solitonic configurations in field theories, providing robustness and a nonperturbative label, the so-called topological charge . In…
Gauged compact -balls and -shells in a multi-component model
P. Klimas, L. C. Kubaski, N. Sawado +1
We study a multicomponent model's scalar electrodynamics. The model contains -balls and -shells, which are nontopological compact solitons with time dependency $e^{iÏ…
Skyrmion with Fermion Backreaction
Yuki Amari, Nobuyuki Sawado, Shintaro Yamamoto
When fermions interact with a topological soliton, they localize on the soliton. In studies of such systems, solitons are often treated as fixed background fields, and the backreac…
Multishell Dirac fermions in the Einstein-Dirac system
Shunsuke Iwasawa, Nobuyuki Sawado
We present multifermions in the spherically symmetric Einstein-Dirac system. Dirac fermions are self-localized within a spherically symmetric Einstein gravity, i.e., the Schwarzsch…
PINNs Study for the Bekki-Nozaki Chaos in the Non-linear Schrödinger equation
N. Sawado, Y. Shimazaki, Y. Suzuki
In this paper we study chaotic behavior in the forced dissipative non-linear Schrödinger equation, so called the Bekki-Nozaki equation. Chaotic systems are often seen in a strong…