研究者業績

池田 晴國

イケダ ハルクニ  (Harukuni Ikeda)

基本情報

所属
学習院大学 理学部 物理学科 助教

連絡先
harukuni.ikedagakushuin.ac.jp
研究者番号
30911763
J-GLOBAL ID
202101010493965998
researchmap会員ID
R000021176

外部リンク

主要な論文

 28
  • Harukuni Ikeda
    The Journal of Chemical Physics 158(5) 2023年2月1日  査読有り筆頭著者責任著者
  • Harukuni Ikeda
    Physical Review Letters 125(3) 2020年7月13日  査読有り筆頭著者責任著者
  • Harukuni Ikeda, Carolina Brito, Matthieu Wyart, Francesco Zamponi
    Physical Review Letters 124(20) 2020年5月18日  査読有り筆頭著者責任著者
  • Carolina Brito, Harukuni Ikeda, Pierfrancesco Urbani, Matthieu Wyart, Francesco Zamponi
    Proceedings of the National Academy of Sciences 115(46) 11736-11741 2018年10月31日  査読有り責任著者
    Significance The jamming transition is a key property of granular materials, including sand and dense suspensions. In the generic situation of nonspherical particles, its scaling properties are not completely understood. Previous empirical and theoretical work in ellipsoids and spherocylinders indicates that both structural and vibrational properties are fundamentally affected by shape. Here we explain these observations using a combination of marginal stability arguments and the replica method. We unravel a universality class for particles with internal degrees of freedom and derive how the structure of packings and their vibrations scale as the particles evolve toward spheres.
  • Harukuni Ikeda, Francesco Zamponi, Atsushi Ikeda
    The Journal of Chemical Physics 147(23) 2017年12月21日  査読有り筆頭著者責任著者
    The swap Monte Carlo algorithm combines the translational motion with the exchange of particle species and is unprecedentedly efficient for some models of glass former. In order to clarify the physics underlying this acceleration, we study the problem within the mean field replica liquid theory. We extend the Gaussian Ansatz so as to take into account the exchange of particles of different species, and we calculate analytically the dynamical glass transition points corresponding to the swap and standard Monte Carlo algorithms. We show that the system evolved with the standard Monte Carlo algorithm exhibits the dynamical transition before that of the swap Monte Carlo algorithm. We also test the result by performing computer simulations of a binary mixture of the Mari-Kurchan model, both with standard and swap Monte Carlo. This scenario provides a possible explanation for the efficiency of the swap Monte Carlo algorithm. Finally, we discuss how the thermodynamic theory of the glass transition should be modified based on our results.

MISC

 1

講演・口頭発表等

 31

教育業績(担当経験のある科目)

 2

共同研究・競争的資金等の研究課題

 4