Research field (1)：
Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research keywords (6)：
Early Universe Theory
, axion
, バリオン非対称性
, インフレーション
, ダークマター
, particle cosmology
Research theme for competitive and other funds (22)：
2025 - 2027 広範な質量領域におけるアクシオンダイナミクスによる物質の起源の解明
2020 - 2025 What is dark matter? - Comprehensive study of the huge discovery space in dark matter
2020 - 2025 A theoretical study of the generation and evolution of light dark matter
2020 - 2025 極弱相互作用を持つ軽い新粒子の描く新宇宙描像とその実験的検証
2020 - 2025 極弱相互作用を持つ軽い新粒子の描く新宇宙描像とその実験的検証
2017 - 2022 Experimental tests of high-scale supersymmetry
2017 - 2021 Cosmological Evolution and Search for Light New Particles with Ultraweak Interactions
2015 - 2020 Why does the Universe accelerate? - Exhaustive study and challenge for the future -
2015 - 2020 Exploring the evolution of the fluctuations and structure of the Universe, and the physics behind it
2014 - 2018 Quest for the Ultimate Theory in terms of rich cosmophysical phenomena caused by fields and particles in the hidden sector
2014 - 2017 Theoretical and phenomenological studies of High-scale supersymmetric model
2012 - 2016 Evolution of the early Universe based on the results of Planck and LHC
2011 - 2016 Early Universe in the Era of LHC
2012 - 2015 Helicity amplitudes for general spin and physics beyond the standard model at LHC
2009 - 2015 research on cosmological nonlinear and non-perturbative gravitational phenomena
2012 - 2014 非ガウス性から探る密度揺らぎの起源と進化
2010 - 2014 The exploration of extradimensions in terms of a variety of cosmophysical phenomena caused by axionic moduli
2009 - 2014 Quest for the ultimate theory on the basis of direct observations of the early evolution of the universe
2010 - 2011 低エネルギーインフレーション模型における整合的宇宙論の構築とその観測的検証
2009 - 2011 Research on inflationary universe and density perturbation based on
2005 - 2007 インフレーション宇宙における密度揺らぎの進化と物質及び暗黒物質の起源
2003 - 2004 インフレーション宇宙における物質の起源とその揺らぎの進化
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Papers (73)：
Kai Murai, Kodai Sakurai, Fuminobu Takahashi. Primordial black hole formation via inverted bubble collapse. Journal of High Energy Physics. 2025
Naoya Kitajima, Junseok Lee, Fuminobu Takahashi, Wen Yin. Stability of domain walls with inflationary fluctuations under potential bias, and gravitational wave signatures. Journal of Cosmology and Astroparticle Physics. 2025
Kodai Sakurai, Fuminobu Takahashi. Thermal production of axions from heavy Higgs bosons. Journal of High Energy Physics. 2025
Kai Murai, Yuma Narita, Fuminobu Takahashi, Wen Yin. QCD axion dark matter from level crossing with refined adiabatic condition. Journal of High Energy Physics. 2025
Junseok Lee, Kai Murai, Fuminobu Takahashi, Wen Yin. More is different: multi-axion dynamics changes topological defect evolution. Journal of Cosmology and Astroparticle Physics. 2025
Takahashi Fuminobu. 19pSL-2 B-mode polarization as a probe of early universe and particle physics. Meeting abstracts of the Physical Society of Japan. 2014. 69. 2. 42-42
Takahashi Fuminobu. 17aSY-5 Discovery of non-thermal gravitino problem in inflaton decay. Meeting abstracts of the Physical Society of Japan. 2011. 66. 2. 104-104
Takahashi Fuminobu. 25aGR-2 Discovery of non-thermal gravitino problem in inflaton decay. Meeting abstracts of the Physical Society of Japan. 2011. 66. 1. 101-101
Takahashi Fuminobu, Yanagida T.T., Yonekura Kazuya. 23aSL-8 Gravititational Waves as a Probe of the Gravitino Mass. Meeting abstracts of the Physical Society of Japan. 2008. 63. 2. 12-12
Konya Kenichiro, Takahashi Fuminobu, Kawasaki Masahiro. 12aSF-9 Instability of the Q-ball in Affleck-Dine Baryogenesis. Meeting abstracts of the Physical Society of Japan. 2005. 60. 2. 22-22
Lectures and oral presentations (17)：
Light Dark Matter
(“What is dark matter? - Comprehensive study of the huge discovery space in dark matter" 2025)
Fate of topological defects in multiple axion models
(2024)
Bubble Misalignment Mechanism
(DESY Theory Workshop 2024)
Inflation, the beginning of the universe
(2024)
Isotropic and anisotropic cosmic birefringence by axion domain walls
(1st iTHEMS Cosmology Forum, Riken 2024)
