290 citations · 1.6k across the 46 of their papers we have counts for
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Machine-Learning-Based Exchange-Correlation Functional with Physical Asymptotic Constraints
Ryo Nagai, Ryosuke Akashi, Osamu Sugino
Density functional theory is the standard theory for computing the electronic structure of materials, which is based on a functional that maps the electron density to the energy. H…
The missing quantum number of the Floquet states
Cristian M. Le, Ryosuke Akashi, Shinji Tsuneyuki
We reformulate the Floquet theory for periodically driven quantum systems following a perfect analogy with the proof of Bloch theorem. We observe that the current standard method f…
Revisiting the homogeneous electron gas in pursuit of the properly normed ab initio Eliashberg theory
Ryosuke Akashi
We address an issue of how to accurately include the self energy effect of the screened electron-electron Coulomb interaction in the phonon-mediated superconductors from first prin…
Chemical physics of superconductivity in layered yttrium carbide halides from first principles
Ryosuke Akashi, Ryotaro Arita, Chao Zhang +2
We perform a thorough first-principles study on superconductivity in yttrium carbide halide YC (=Cl, Br, I) whose maximum transition temperature () amoun…