34 citations · 48 across the 3 of their papers we have counts for
7 papers
Renormalization Group and Curved Spacetime
Hiroaki Matsueda
We examine the role of curved geometry on renormalization group by means of image compression based on the singular value decomposition. By calculating course-grained images and th…
Enhancement of phonon effects in photoexcited states of one-dimensional Mott insulators
Hiroaki Matsueda, Akihiro Ando, Takami Tohyama +1
We examine how the electron correlation affects the electron-phonon (EP) interaction in the linear optical absorption spectrum of the one-dimensional (1D) extended Hubbard-Holstein…
Photoinduced charge and spin dynamics in strongly correlated electron systems
Hiroaki Matsueda, Sumio Ishihara
Motivated by photoinduced phase transition in manganese oxides, charge and spin dynamics induced by photoirradiation are examined. We calculate the transient optical absorption spe…
Electron-phonon coupling and spin-charge separation in one-dimensional Mott insulators
Hiroaki Matsueda, Takami Tohyama, Sadamichi Maekawa
We examine the single-particle excitation spectrum in the one-dimensional Hubbard-Holstein model at half-filling by performing the dynamical density matrix renormalization group (D…
Temperature dependence of spinon and holon excitations in one-dimensional Mott insulators
Hiroaki Matsueda, Nejat Bulut, Takami Tohyama +1
Motivated by the recent angle-resolved photoemission spectroscopy (ARPES) measurements on one-dimensional Mott insulators, SrCuO and NaVO, we exa…
Excitonic effect on optical response in one-dimensional two-band Hubbard model
H. Matsueda, T. Tohyama, S. Maekawa
Motivated by the gigantic nonlinear optical response in the halogen-bridged Ni-compounds, the underlying electronic states of the compounds are examined in the one-dimensional two-…