37 citations · 48 across the 7 of their papers we have counts for
7 papers
Mean first passage times reconstruct the slowest relaxations in potential energy landscapes of nanoclusters
Teruaki Okushima, Tomoaki Niiyama, Kensuke S. Ikeda +1
Relaxation modes are the collective modes in which all probability deviations from equilibrium states decay with the same relaxation rates. In contrast, a first passage time is the…
Changes of graph structure of transition probability matrices indicate the slowest kinetic relaxations
Teruaki Okushima, Tomoaki Niiyama, Kensuke S. Ikeda +1
Graphs of the most probable transitions for a transition probability matrix, , i.e., the time evolution matrix of the transition rate matrix over a finite time interval…
Slowest kinetic modes revealed by metabasin renormalization
Teruaki Okushima, Tomoaki Niiyama, Kensuke S. Ikeda +1
Understanding the slowest relaxations of complex systems, such as relaxation of glass-forming materials, diffusion in nanoclusters, and folding of biomolecules, is important for ph…
On the origin of atomistic mechanism of rapid diffusion in alkali halide nanoclusters
Tomoaki Niiyama, Shin-ichi Sawada, Kensuke S. Ikeda +1
To elucidate the atomistic diffusion mechanism responsible for the rapid diffusion in alkali halide nano particles, called Spontaneous Mixing, we execute molecular dynamics simulat…
Quantum and classical chaos of a two-electron system in a quantum wire
Shumpei Masuda, Shin-ichi Sawada, Yasushi Shimizu
We study classical and quantum dynamics of two spinless particles confined in a quantum wire with repulsive or attractive Coulomb interaction. The interaction induces irregular dyn…
On a relationship between the collective migration of surface atoms in microclusters and the saddle points on the potential energy surface
Yasushi Shimizu, Shin-ichi Sawada, Kensuke S. Ikeda
Plenty of saddles on a multidimensional potential energy surface(PES) of two-dimensional microclusters, where atoms are interacting via Morse potential, are numerically located. Th…