Otsuka Hajime

オオツカハジメ | Otsuka Hajime

Affiliation and department：

Research field (1)： Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (2)：素粒子理論 , 素粒子現象論

Research theme for competitive and other funds (5)：

Papers (74)：

Tatsuo Kobayashi, Hajime Otsuka. Non-invertible flavor symmetries in magnetized extra dimensions. Journal of High Energy Physics. 2024. 2024. 11
Keiya Ishiguro, Takafumi Kai, Hajime Otsuka. Stabilization of a twisted modulus on a mirror of rigid Calabi-Yau manifold. Journal of High Energy Physics. 2024. 2024. 10
Tetsutaro Higaki, Tatsuo Kobayashi, Kaito Nasu, Hajime Otsuka. Spontaneous CP violation and partially broken modular flavor symmetries. Journal of High Energy Physics. 2024. 2024. 9
Takuya Hirose, Hajime Otsuka, Koji Tsumura, Yoshiki Uchida. Nambu-Goldstone modes in magnetized T2n extra dimensions. Physical Review D. 2024. 110. 3
Keiya Ishiguro, Tatsuo Kobayashi, Satsuki Nishimura, Hajime Otsuka. Modular forms and hierarchical Yukawa couplings in heterotic Calabi-Yau compactifications. Journal of High Energy Physics. 2024. 2024. 8

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MISC (15)：

大塚啓, 下村崇, 下村崇, 津村浩二, 内田祥紀, 山津直樹. Pseudo-Nambu-Goldstone Dark Matter from Non-Abelian Gauge Symmetry. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1
石黒奎弥, 小林達夫, 大塚啓. Landscape of Modular Symmetric Flavor Models. 日本物理学会講演概要集(CD-ROM). 2021. 76. 1
大塚啓. 時空概念と物理学の発展超弦時空と機械学習. 数理科学. 2020. 59. 1
竹本賢太, 大塚啓. Classification of SO(32) heterotic string vacua by autoencoder and clustering. 日本物理学会講演概要集(CD-ROM). 2020. 75. 1
石黒奎弥, 大塚啓. IIB型超弦理論におけるブロー・アップモジュライの固定. 日本物理学会講演概要集(CD-ROM). 2020. 75. 1

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Lectures and oral presentations (84)：

Machine learning-based analysis of the Atiyah-Singer index in string compactifications
(String Data 2024 2024)
Yukawa textures from non-invertible symmetries
(2024)
Machine learning-based stastical search strategy for particle and string phenomenology
(2024)
Stringy constraints on primordial electromagnetic fields in axion inflation
(2024)
Non-invertible flavor symmetries in magnetized extra dimensions
(2024)

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Education (3)：

2013 - 2016 Waseda University Graduate School of Advanced Science and Engineering
2011 - 2013 Waseda University Graduate School of Advanced Science and Engineering
2007 - 2011 Waseda University School of Advanced Science and Engineering

Work history (4)：

2022 - 現在 Kyushu University Faculty of Sciences Department of Physics Assistant Professor
2021 - 2021 Institute for Basic Science Senior Researcher
2019 - 2021 High Energy Accelerator Research Organization Institute of Particle and Nuclear Studies
2016 - 2019 Waseda University Faculty of Science and Engineering Assistant Professor

Association Membership(s) (1)：

日本物理学会

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