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J-GLOBAL ID：201301082913053084   Update date: Feb. 14, 2024

Ichiki Akihisa

Ichiki Akihisa
Affiliation and department：
Fukuoka University Faculty of Science Department of Applied Mathematics

About Fukuoka University Faculty of Science Department of Applied Mathematics


Job title： Associate professor
Research field  (1)： Mathematical physics and basic theory
Research keywords  (1)： Statistical Physics
Research theme for competitive and other funds  (4)：
  • 2017 - 2022 Discrete Geometric Analysis for materials design
  • 2017 - 2022 Material Function Estimation Based on Real Space Observation
  • 2016 - 2019 Innovative machine learning algorithm driven by violation of detailed balance condition
  • 2008 - 2009 統計物理の手法を用いたエキゾティックな相互作用を持つ多体系の性質の解明
Papers (53)：
  • Takaya Kato, Hiroshi Ito, Kazuo Hasegawa, Tadashi Ichikawa, Akio Ikesue, Shintaro Mizuno, Yasuhiko Takeda, Akihisa Ichiki, Tomoyoshi Motohiro. Energy transfer efficiency from Cr3+ to Nd3+ in Cr, Nd YAG ceramics laser media in a solar-pumped laser in operation outdoors. Optical Materials. 2020. 110. 110481-110481
  • Akihisa Ichiki, Keiji Okumura. Diversity of dynamical behaviors due to initial conditions: exact results with extended Ott-Antonsen ansatz for identical Kuramoto-Sakaguchi phase oscillators. Physical Review E. 2020. 101. 2. 022211
  • Y. Ichiki, A. Ichiki, T. Hioki, M. Sasaki, J.-H. Noh, O. Takai, H. Honma, T. Motohiro. Estimation of electricity storage capacity of compact SMESs composed of stacks of Si-wafers loaded with superconducting thin film coils in spiral trenches formed by MEMS process. Journal of Physics: Conference Series. 2019. 1293
  • Takaya Kato, Hiroshi Ito, Kazuo Hasegawa, Tadashi Ichikawa, Akio Ikesue, Shintaro Mizuno, Yasuhiko Takeda, Akihisa Ichiki, Tomoyoshi Motohiro. Effect of Cr content on the output of a solar-pumped laser employing a Cr-doped Nd:YAG ceramic laser medium operating in sunlight. Japanese Journal of Applied Physics. 2019. 58. 6
  • Yasuhiro Suzuki, Hiroshi Ito, Takaya Kato, Luu Thi An Phuc, Kemmei Watanabe, Hidetaka Terazawa, Kazuo Hasegawa, Tadashi Ichikawa, Shintaro Mizuno, Akihisa Ichiki, et al. Continuous oscillation of a compact solar-pumped Cr, Nd-doped YAGceramic rod laser for more than 6.5 h tracking the sun. Solar Energy. 2018. 177. 440-447
ｍore...
MISC (22)：
  • Akihisa Ichiki, Masayuki Ohzeki. Upper bound inequality for calculation time in simulated annealing analogous to adiabatic theorem in quantum systems. arXiv:2107.01792. 2021
  • Akihisa Ichiki, Masayuki Ohzeki. Stochastic dynamics without detailed balance condition connecting simple gradient method and Hamiltonian Monte Carlo. arXiv:2107.08633. 2021
  • Keiji Okumura, Akihisa Ichiki. Chaotic synchronization induced by external noise in coupled limit cycle oscillators. arXiv:1909.08805. 2019
  • 葛西 誠也, 一木 輝久, 田所 幸浩. 自然界のありふれた雑音は小さな信号を際立たせる -直感に反する確率共鳴現象の解明に新たな道筋:電子機器の小型・低消費電力化への貢献に期待. 北海道大学プレスリリース. 2018
  • ICHIKI Akihisa, TADOKORO Yukihiro. Optimal Nonlinear Filter for Weak Signal Extraction under Colored Non-Gaussian Noise. IEICE technical report. Nonlinear problems. 2013. 112. 487. 49-54
ｍore...
Patents (1)：
  • 信号再生装置及び信号再生方法
Books (1)：
  • マテリアルズ・インフォマティクス開発事例最前線
    エヌ・ティー・エス 2021 ISBN:9784860437084
Lectures and oral presentations  (146)：
  • ノイズ付きResNetの定常状態
    (日本物理学会第76回年次大会)
  • トポロジーの道具としての深層学習
    (日本物理学会第76回年次大会)
  • ニューラルネットワークによる結び目の標準化
    (ディープラーニングと物理学2020オンライン 2021)
  • 大域結合位相振動子系におけるOtt-Antonsen仮説の一般化と初期状態依存した多様な系の振る舞い
    (日本物理学会第75回年次大会)
  • Optimization Problems in Data Driven Science-Fundamental and Applications in Materials Informatics-
    (Material Research Meeting 2019)
ｍore...
Education (4)：
  • 2006 - 2009 Tokyo Institute of Technology Graduate School, Division of Science and Engineering
  • 2004 - 2006 Tokyo Institute of Technology Graduate School, Division of Science and Engineering
  • 2001 - 2003 The University of Tokyo Graduate School, Division of Science
  • 1996 - 2001 The University of Tokyo Faculty of Science
Professional career (3)：
  • 博士(理学) (東京工業大学)
  • 修士(理学) (東京工業大学)
  • 修士(理学) (東京大学)
Work history (9)：
  • 2022/04 - 現在 Fukuoka University Faculty of Science Department of Applied Mathematics Associate professor
  • 2018/10 - 2022/03 Nagoya University Institute of Innovation for Future Society Designated associate professor
  • 2017/03/01 - 2018/09/30 Nagoya University Institute of Innovation for Future Society Mobility Research Course Material & Energy Section Designated associate professor
  • 2016/04/01 - 2017/02/28 Nagoya University Institute of Innovation for Future Society Mobility Research Course Material & Energy Section Designated assistant professor
  • 2013/04/01 - 2016/03/31 Nagoya University Green Mobility Collaborative Research Center Division Designated assistant professor
Show all
Awards (3)：
  • 2020 - 第42回応用物理学会論文賞 Divergence of relative difference in Gaussian distribution function and stochastic resonance in a bistable system with frictionless state transition
  • 2016 - 第33回電気通信普及財団賞(テレコムシステム技術賞)奨励賞 Design Framework of Image Sensor System Based on Dynamic Range Extension by Adding Noise for Saturated Conditions
  • 2014 - 平成26年情報処理学会高度交通システム研究会優秀論文賞 確率共鳴現象の応用によるハレーション環境での歩行者認識性能 の改善
Association Membership(s) (1)：
日本物理学会
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