22 citations · 58 across the 5 of their papers we have counts for
5 papers
Band structures in coupled-cluster singles-and-doubles Green's function (GFCCSD)
Yoritaka Furukawa, Taichi Kosugi, Hirofumi Nishi +1
We demonstrate that coupled-cluster singles-and-doubles Green's function (GFCCSD) method is a powerful and prominent tool drawing the electronic band structures and the total energ…
Comparison of Green's functions for transition metal atoms using self-energy functional theory and coupled-cluster singles and doubles (CCSD)
Taichi Kosugi, Hirofumi Nishi, Yoritaka Furukawa +1
We demonstrate in the present study that self-consistent calculations based on the self-energy functional theory (SFT) are possible for the electronic structure of realistic system…
Quasiparticle energy spectra of isolated atoms from coupled-cluster singles and doubles (CCSD): Comparison with exact CI calculations
Hirofumi Nishi, Taichi Kosugi, Yoritaka Furukawa +1
In this study, we have calculated single-electron energy spectra via the Green's function based on the coupled-cluster singles and doubles (GFCCSD) method for isolated atoms from H…
Analysis of single and composite structural defects in pure amorphous silicon: a first-principles study
Yoritaka Furukawa, Yu-ichiro Matsushita
The structural and electronic properties of amorphous silicon (-Si) are investigated by first-principles calculations based on the density-functional theory (DFT), focusing on t…
First-Principles Prediction of Densities of Amorphous Materials: The Case of Amorphous Silicon
Yoritaka Furukawa, Yu-ichiro Matsushita
A novel approach to predict the atomic densities of amorphous materials is explored on the basis of Car-Parrinello molecular dynamics (CPMD) in density functional theory. Despite t…