23pZQ-11 Broad Histogram法の±Jイジングモデルへの応用 2

智明 山口, 直輝 川島, 豊 岡部

志剛 佐々木, 幸児 根本

文明 柴田, 佐知子 北島

Alexandre P. Lima, P.M.C. de Oliveira, Daniel Girardi

In this work, we present a comparative study of the accuracy provided by the Wang-Landau sampling and the Broad Histogram method to estimate de density of states of the two dimensional Ising ferromagnet. The microcanonical averages used to describe the thermodynamic behaviour and to use the Broad Histogram method were obtained using the single spin-flip Wang-Landau sampling, attempting to convergence issues and accuracy improvements. We compare the results provided by both techniques with the exact ones for thermodynamic properties and critical exponents. Our results, within the Wang-Landau sampling, reveal that the Broad Histogram approach provides a better description of the density of states for all cases analysed.

Elizabeth A. Goldschmidt, Matthew D. Eisaman, Jingyun Fan +3 more

We report the development of a spectrally bright and broad heralded single-photon source based on spontaneous four-wave-mixing in a single-mode fiber, measuring the second-order correlation function, g(2)(0), far below unity over a broad spectral range.

Yamaji K., 淳 近藤