4 papers
SALMON 2.3: Implementation of divide-and-conquer ground-state initialization for large-scale real-time TDDFT
Shunsuke Yamada, Tomohito Otobe
In large-scale real-time time-dependent density functional theory (TDDFT), preparing the ground-state electronic structure can be more expensive than the subsequent time propagatio…
Ultrafast Spin Injection in Graphene via Dynamical Carrier Filtering at Transition Metal Dichalcogenide Interfaces
Shunsuke Yamada, Arqum Hashmi, Tomohito Otobe
We report a real-time first-principles study of ultrafast spin injection in a WSe-graphene heterobilayer under circularly polarized laser irradiation, using time-dependent dens…
SALMON VR: Visualizing Light-Matter Dynamics
Tomohito Otobe, Tatsuya Ogusu, Mizuki Tani +1
This study presents SALMON VR, a visualization program designed to visualize the time evolution of electronic density changes and vector potentials in virtual reality (VR) space. T…
Saturable absorption in highly excited silicon and its suppression at the surface
Shunsuke Yamada, Tomohito Otobe
Nonlinear electronic excitation in laser-irradiated silicon at finite electron temperatures is numerically investigated by first-principles calculations based on the time-dependent…