139 citations · 273 across the 5 of their papers we have counts for
6 papers
Simulation of Transitions between "Pasta" Phases in Dense Matter
Gentaro Watanabe, Toshiki Maruyama, Katsuhiko Sato +2
Calculations of equilibrium properties of dense matter predict that at subnuclear densities nuclei can be rodlike or slablike. To investigate whether transitions between phases wit…
Dynamics of Intermediate Mass Black Holes in Star Clusters
Holger Baumgardt, Simon Portegies Zwart, Steve McMillan +2
We have followed the evolution of multi-mass star clusters containing massive central black holes by N-body simulations on the GRAPE6 computers of Tokyo University. We find a stron…
Random phase vector for calculating the trace of a large matrix
Toshiaki Iitaka, Toshikazu Ebisuzaki
We derive an estimate of statistical error in calculating the trace of a large matrix by using random vector, and show that {\em random phase vector} gives the results with the sma…
Nuclear pasta structure in hot neutron stars
Gentaro Watanabe, Katsuhiko Sato, Kenji Yasuoka +1
Structure of cold and hot dense matter at subnuclear densities is investigated by quantum molecular dynamics (QMD) simulations. Obtained phase diagrams show that the density of the…
Methane Hydrate under High Pressure: Searching for Centering of Hydrogen Bonds
Toshiaki Iitaka, Toshikazu Ebisuzaki
The structural, electronic, and spectroscopic properties of a high-pressure phase of methane hydrate (MH-III) are studied by first principles electronic structure calculations. A d…
Non-degenerate Two Photon Absorption Spectra of Si Nanocrystallites
Toshiaki Iitaka, Toshikazu Ebisuzaki
We propose an efficient linear-scaling time-dependent method for calculating nonlinear response function, and study the size effects in non-degenerate two photon absorption spectra…