639 citations · 2.3k across the 35 of their papers we have counts for
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An efficient method for calculating spatially extended electronic states of large systems with a divide-and-conquer approach
Shunsuke Yamada, Fuyuki Shimojo, Ryosuke Akashi +1
We present an efficient post-processing method for calculating the electronic structure of nanosystems based on the divide-and-conquer approach to density functional theory (DC-DFT…
Anisotropic superconducting gaps in YNiBC: A first-principles investigation
Mitsuaki Kawamura, Ryosuke Akashi, Shinji Tsuneyuki
We calculate superconducting gaps and quasiparticle density of states of YNiBC in the framework of the density functional theory for superconductors to investigate the orig…
Numerical Investigation of Triexciton Stabilization in Diamond with Multiple Valleys and Bands
Hiroki Katow, Junko Usukura, Ryosuke Akashi +2
The existence of polyexcitons, the -body complexes of excitons for in 3D bulk systems, has been controversial for more than 40 years since its first theoretical suggesti…
Iterative diagonalization of the non-Hermitian transcorrelated Hamiltonian using a plane-wave basis set: Application to -electron systems with deep core states
Masayuki Ochi, Yoshiyuki Yamamoto, Ryotaro Arita +1
We develop an iterative diagonalization scheme in solving a one-body self-consistent-field equation in the transcorrelated (TC) method using a plane-wave basis set. Non-Hermiticity…