19 citations · 31 across the 3 of their papers we have counts for
6 papers
Effect of phase string on single-hole dynamics in the two-leg Hubbard ladder
Kazuya Shinjo, Shigetoshi Sota, Takami Tohyama
Optical measurements in doped Mott insulators have discovered the emergence of spectral weights at mid-infrared (MIR) upon chemical doping and photodoping. MIR weights may have a r…
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…
Ultrafast transient interference in pump-probe spectroscopy of band and Mott insulators
Kazuya Shinjo, Takami Tohyama
Ultrafast pump-probe spectroscopy with high temporal and spectral resolutions provides new insight into ultrafast nonequilibrium phenomena. We propose that transient interference b…
Photoinduced absorptions inside the Mott gap in the two-dimensional extended Hubbard model
Kazuya Shinjo, Takami Tohyama
We theoretically investigate pump-probe optical responses in the two-dimensional extended Hubbard model describing cuprates by using a time-dependent Lanczos method. At half fillin…