4 citations · 4 across the 1 of their papers we have counts for
4 papers
Excitonic optical spectra and energy structures in a one-dimensional Mott insulator demonstrated by applying a many-body Wannier functions method to a charge model
T. Yamaguchi, K. Iwano, T. Miyamoto +5
We have applied a many-body Wannier functions method to theoretically calculate an excitonic optical conductivity spectrum and energy structure in a one-dimensional (1D) Mott insul…
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…
Photoexcitation of a polarization-inverted domain from the charge-ordered ferroelectric ground state of (TMTTF)PF
T. Yamaguchi, K. Asada, H. Yamakawa +5
We theoretically revealed that a weak photoexcitation achieves the electric polarization-inversion with approximately of all the charges, which was interpreted as a superimp…
The optical conductivity for a spin-Peierls ground state of (TMTTF)PF with tetramer formation
T. Yamaguchi, K. Iwano
We theoretically investigate the optical conductivity of (TMTTF)PF in the spin-Peierls ground state within the framework of the exact diagonalization method at absolute…