39 citations · 190 across the 15 of their papers we have counts for
15 papers
Domain State of the ANNNI model in Two Dimensions
Fumitaka Matsubara, Takayuki Shirakura, Nobuo Suzuki
We have examined the spin ordering of an axial next-nearest-neighbor Ising (ANNNI) model in two dimensions (2D) near above the antiphase ( phase). We considered…
Instability of group formation through indirect reciprocity under imperfect information and implementation error
Ayami Isagozawa, Takayuki Shirakura, Satsuki Tanabe
Indirect reciprocity is a key mechanism behind the evolution of cooperation. Oishi et al. analytically showed the formation of two exclusive groups under the KANDORI assessment rul…
Absence of a classical long-range order in Heisenberg antiferromagnet on triangular lattice
Nobuo Suzuki, Fumitaka Matsubara, Sumiyoshi Fujiki +1
We study the quantum phase transition of an anisotropic Heisenberg antiferromagnet on a triangular lattice. We calculate the sublattice magnetizat…
Kosterlitz-Thouless Phase Transition of the ANNNI model in Two Dimensions
T. Shirakura, F. Matsubara, N. Suzuki
The spin structure of an axial next-nearest-neighbor Ising (ANNNI) model in two dimensions (2D) is a renewed problem because different Monte Carlo (MC) simulation methods predicted…
Window measurements of simulations in random systems
Tota Nakamura, Takayuki Shirakura
Numerical studies in random systems are plagued with strong finite-size effects and boundary effects. We introduce a window-measurement method as a practical solution to these diff…
Beta-delayed neutron and gamma-ray spectroscopy of 17C utilizing spin-polarized 17B
H. Ueno, H. Miyatake, Y. Yamamoto +18
Excited states in 17C were investigated through the measurement of beta?-delayed neutrons and gamma rays emitted in the ? decay of 17B. In the measurement, three negative-parity st…