45 citations · 487 across the 36 of their papers we have counts for
4 papers · 1 filter
Magnetic excitations in magnetization plateaux of a frustrated spin ladder
Kota Sasaki, Takanori Sugimoto, Shigetoshi Sota +1
Magnetization plateaux emerging in quantum spin systems due to spontaneously breaking of translational symmetry have been reported both theoretically and experimentally. The broken…
A charge model as an effective model of one-dimensional Hubbard and extended Hubbard systems: its application to linear optical spectrum calculations in large systems based upon many-body Wannier functions
Shu Ohmura, Akira Takahashi, Kaoru Iwano +5
We propose an effective model called the "charge model", for the half-filled one-dimensional Hubbard and extended Hubbard models. In this model, spin-charge separation, which has b…
Machine Learning Phase Diagram in the Half-filled One-dimensional Extended Hubbard Model
Kazuya Shinjo, Kakeru Sasaki, Satoru Hase +4
We demonstrate that supervised machine learning (ML) with entanglement spectrum can give useful information for constructing phase diagram in the half-filled one-dimensional extend…
Characterization of photoexcited states in the half-filled one-dimensional extended Hubbard model assisted by machine learning
Kazuya Shinjo, Shigetoshi Sota, Seiji Yunoki +1
Photoinduced nonequilibrium states can provide new insight into dynamical properties of strongly correlated electron systems. One of the typical and extensively studied systems is…