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作者:Yukihiro Komura , Yutaka Okabe
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2016, Vol.85 (4)JPS
摘要:\(T_{\text{c}}^{*}/J = 2.14987 \pm 0.00005\)]]> . Moreover, we definitely confirm the duality relation between the critical temperatures on the dual pair of quasilattices with a high degree of accuracy, ...
作者:Yutaka Okabe , Macoto Kikuchi
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 1988, Vol.57 (12), pp.4351-4358JPS
摘要:We systematically study the spin 1/2 quantum XXZ model on the square lattice using a quantum Monte Carlo method. The temperature dependence of the energy, specific heat and order parameter is calculated for the systems of sizes up to 16×16. Investigating the size dependence ...
作者:Yutaka Okabe , Macoto Kikuchi
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 1987, Vol.56 (6), pp.1963-1973JPS
摘要:The cluster-spin decomposition method is studied for the quantum Monte Carlo simulation based on the Suzuki-Trotter formula. A new vectorized algorithm for the speed-up of the calculation is implemented. We investigate the one-dimensional ferromagnetic and antiferromagnetic Heise...
作者:Yutaka Okabe , Komajiro Niizeki
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 1988, Vol.57 (5), pp.1536-1539JPS
摘要:The ferromagnetic Ising model on the dual Penrose lattice is simulated by the Monte Carlo method. Using a phenomenological Monte Carlo renormalization group based on finite-size scaling, the critical temperature and the magnetic critical exponent are estimated as T c...
作者:Yutaka Okabe , Komajiro Niizeki
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 1988, Vol.57 (1), pp.16-19JPS
摘要:The critical properties of the Ising model on the Penrose lattice of a size up to 439,204 sites are studied by means of the Monte Carlo simulation. We make an analysis of a phenomenological Monte Carlo renormalization group based on finite-size scaling. The critical temperat...
作者:Yutaka Okabe , Tadashi Aoki , Katsumi Sakurai
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 1976, Vol.40 (3), pp.798-803JPS
摘要:The third-order correlation properties of the integrated intensity of a Rayleigh scattering are discussed. The third-order temporal cumulant of the Rayleigh scattered light from polystyrene latex has been measured with a computer-controlled data acquisition system. The results of...
作者:Yusuke Tomita , Yutaka Okabe
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2002, Vol.71 (6), pp.1570-1575JPS
摘要:We present a detailed description of the idea and procedure for the newly proposed Monte Carlo algorithm of tuning the critical point automatically, which is called the probability-changing cluster (PCC) algorithm [Y. Tomita and Y. Okabe: Phys. Rev. Lett. 86 (2001) 572]. Using th...
作者:... Hiromichi Kataura , Yutaka Okabe , Yutaka Maniwa
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2010, Vol.79 (2)JPS
摘要:The low-temperature structures of a model oxygen system confined within single-walled carbon nanotubes (SWCNTs) of several diameters ranging from 0.6 to 2.0 nm were investigated by molecular dynamics calculations. It was found that as the SWCNT diameter increases, the following f...

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