Ryosuke Akashi

collaborators

4 papers

quant-ph2026

Quantum electrometry in a silicon carbide power device

Yuichi Yamazaki, Akira Kiyoi, Naoyuki Kawabata +7

For high-bias operation devices such as silicon carbide (SiC) power devices, early detection of failure mechanisms is essential to ensure reliability. This requires a method to map…

cond-mat.supr-con2026

Electronic structure theory of H $_{3}$ S: Plane-wave-like valence states, density-of-states peak and its guaranteed proximity to the Fermi level

Ryosuke Akashi

Superconductivity in sulfur superhydride H $_{3}$ S under extreme pressures has been explained theoretically, but it requires a peaked concentration of the electronic density of stat…

cond-mat.supr-con2025

Uniform electron benchmark for the first-principles $G W_{0}$ -Eliashberg theory

Ryosuke Akashi, Hiroshi Shinaoka

We investigate the numerical behavior of the Eliashberg equations for phonon-mediated superconductivity, incorporating normal-state self-energy calculations within the consistent $…

physics.comp-ph2025

Can machines learn density functionals? Past, present, and future of ML in DFT

Ryosuke Akashi, Mihira Sogal, Kieron Burke

Density functional theory has become the world's favorite electronic structure method, and is routinely applied to both materials and molecules. Here, we review recent attempts to…

Quantum electrometry in a silicon carbide power device

Electronic structure theory of H3​S: Plane-wave-like valence states, density-of-states peak and its guaranteed proximity to the Fermi level

Uniform electron benchmark for the first-principles GW0​-Eliashberg theory

Can machines learn density functionals? Past, present, and future of ML in DFT

Electronic structure theory of H $_{3}$ S: Plane-wave-like valence states, density-of-states peak and its guaranteed proximity to the Fermi level

Uniform electron benchmark for the first-principles $G W_{0}$ -Eliashberg theory