16 citations · 33 across the 11 of their papers we have counts for
11 papers
Two-state generator extraction: property currents and a two-layer arrow of time in pre- and post-selected quantum dynamics
Seiki Saito
Conditioning on both past and future assigns intermediate-time properties a causal observer does not; these time-symmetric assignments obey exact symmetry theorems and are measurab…
Deep Learning-Accelerated Dynamic Kinetic Monte Carlo Simulation for Hydrogen Transport in Tungsten
Seiki Saito, Keisuke Takeuchi, Hiroaki Nakamura +5
In magnetic confinement fusion reactors, hydrogen plasma irradiation causes material saturation and recycling, where hydrogen released from the tungsten wall significantly impacts…
Temporal Coarse-Graining as the Origin of Macroscopic Friction in Quantum Spin Chains via Data-Driven Liouvillian Extraction
Seiki Saito
Understanding how macroscopic irreversible hydrodynamics emerges from the reversible unitary dynamics of isolated quantum many-body systems remains a central challenge. Conventiona…
Development of a 3D-CNN-based Prediction Model for Migration Barriers in Plasma-Wall Interactions
Seiki Saito, Keisuke Takeuchi, Hiroaki Nakamura +5
Understanding the long-term transport of hydrogen isotopes in plasma-facing materials, such as tungsten, is critical for the steady-state operation of magnetic confinement fusion r…
Reactive Molecular Dynamics Simulation on DNA Double Strand Breaks Induced by Hydrogen Elimination
Hiroaki Nakamura, Kento Ishiguro, Ayako Nakata +3
We propose a scar model to reproduce how double-strand breaks occur in the telomeric DNA damaged by the effect of the -decay of tritium to helium. In this scar model, the two hy…
Molecular dynamics simulation for coalescence of vacancies in tungsten crystal
Sotaro Tsuru, Hiroaki Nakamura, Yuki Goto +3
We performed molecular dynamics simulations of coalescence of two vacancies in a tungsten (W) crystal to elucidate the effect of temperature and hydrogen atoms. Simulations were pe…
Formation and Classification of Amorphous Carbon by Molecular Dynamics Simulation
Atsushi M. Ito, Arimichi Takayama, Seiki Saito +1
By using molecular dynamics simulation, formation mechanisms of amorphous carbon in particular sp rich structure was researched. The problem that reactive empirical bond orde…
Molecular Dynamics Simulation of Chemical Vapor Deposition of Amorphous Carbon: Dependence on H/C Ratio of Source Gas
Atsushi M. Ito, Arimichi Takayama, Seiki Saito +3
By molecular dynamics simulation, the chemical vapor deposition of amorphous carbon onto graphite and diamond surfaces was studied. In particular, we investigated the effect of sou…
Hybrid Simulation between Molecular Dynamics and Binary Collision Approximation Codes for Hydrogen injection onto Carbon Materials
Seiki Saito, Atsushi M. Ito, Arimichi Takayama +2
Molecular dynamics (MD) simulation with modified Brenner's reactive empirical bond order (REBO) potential is a powerful tool to investigate plasma wall interaction on divertor plat…
Extension of the simulation code ACAT to treat real atomic positions
Arimichi Takayama, Seiki Saito, Atsushi M. Ito +2
We have investigated plasma-surface interactions with molecular dynamics (MD) simulations. It, however, is high cost computation and is limited to simulations for materials of nano…
Incident angle dependence of reactions between graphene and hydrogen atom by molecular dynamics simulation
Seiki Saito, Atsushi Ito, Hiroaki Nakamura
Incident angle dependence of reactions between graphene and hydrogen atoms are obtained qualitatively by classical molecular dynamics simulation under the NVE condition with modifi…