1.5k citations · 2.4k across the 29 of their papers we have counts for
31 papers
Dineutron-dineutron correlation in He
Y. Yamaguchi, W. Horiuchi, T. Ichikawa +1
Background: The four-neutron correlation has been attracting much attention for decades. In addition to the study on the tetra-neutron system, it is worthwhile to investigate the c…
Optimization of basis functions for the multi-configuration mixing using the Replica Exchange Monte-Carlo method and its application to C
Takatoshi Ichikawa, Naoyuki Itagaki
To calculate excited states in quantum many-body systems, multi-configuration mixing has often been employed. However, it has been still unclear how to choose important Slater dete…
Semiclassical origin of asymmetric nuclear fission: Nascent-fragment shell effect in periodic-orbit theory
K. Arita, T. Ichikawa, K. Matsuyanagi
The origin of the asymmetry in the fragment mass distribution of low-energy nuclear fission is considered from the semiclassical point of view. Using the semiclassical periodic-orb…
The microscopic mechanism behind the fission-barrier asymmetry (II): The rare-earth region and
T. Ichikawa, P. Möller
It is well known that most actinides fission into fragments of unequal size. The first attempt to understand this difference suggested that division leading to one of the fragments…
Nascent fragment shell effects on the nuclear fission processes in semiclassical periodic orbit theory
Ken-ichiro Arita, Takatoshi Ichikawa, Kenichi Matsuyanagi
Making use of the semiclassical periodic orbit theory (POT), we propose, for the first time, a method to exclusively evaluate the shell effects associated with each of the nascent…
New and efficient method for solving the eigenvalue problem for the two-center shell model with finite-depth potentials
K. Hagino, T. Ichikawa
We propose a new method to solve the eigen-value problem with a two-center single-particle potential. This method combines the usual matrix diagonalization with the method of separ…