Presentations

Oral Presentations at International Conference/Workshop

  1. [To be] O(d)-symmetric multifield models and stochastic effects, Korea-Japan Joint Workshop on Cosmology, Gravitation and Particle Physics [HP], Nagoya University, Nagoya, Japan. (Jul. 23 - 25, 2025)
  2. Exactly solvable stochastic spectator, New perspectives on cosmology [HP], Asia Pacific Center for Theoretical Physics (APCTP), Pohang, Korea. (Feb. 3 - 7, 2025)
  3. Exactly solvable stochastic spectator, Fourth Mini-workshop on the Early Universe [HP], Yatsugatake Commons, Yamanashi, Japan. (Sep. 3 - 6, 2024)
  4. All exact solutions in stochastic inflation, 29th International Symposium on Particles, String and Cosmology (PASCOS 2024), Quy Nhon, Vietnam. (July 7 - 13, 2024)
  5. Why does inflation look single field to us?, Third Mini-workshop on the Early Universe [HP], Nobumoto Ohama Memorial Hall, Okinawa, Japan. (Feb. 7 - 9, 2024)
  6. Borel resummation for secular divergences in stochastic inflation, RESCEU Summer School 2023, Shinshu University, Nagano, Japan. (Aug. 9 - 12, 2023)
  7. Borel resummation for secular divergences in stochastic inflation, The 25th International Conference From the Planck Scale to the Electroweak Scale (Planck 2023), Warsaw University, Warsaw, Poland. (May 22 - 26, 2023)
  8. Primordial black hole abundance from joint formation criteria, The 15th Asia Pacific Physic Conference (APPC15), Online. (Aug. 21 - 26, 2022)
  9. Two-point correlation in primordial black hole formation, RESCEU Summer School 2022, Online. (Aug. 18, 2022)
  10. Systematic biases on primordial black hole mass function, RESCEU Summer School 2021, Online. (Aug. 18, 2021)
  11. Primordial black holes, improved mass function, and its window function dependence, The Online Workshop on General Relativity and Gravitation in Japan (Online JGRG), Online. (Nov. 23, 2020)
  12. Primordial black holes and uncertainty of the mass function: window function dependence,AAPPS-DACG Workshop on Astrophysics, Cosmology and Gravitation, Online. (Nov. 11, 2020)
  13. Primordial black hole mass spectrum and window function dependence, RESCEU Summer School 2020, Online. (Aug. 19, 2020)

Oral Presentations at Domestic Conference/Workshop

  1. 「インフレーションの確率形式と厳密解」日本物理学会第79回年次大会 17pC214（於北海道大学）, 2024 年 9 月 16 日 - 19日.
  2. 「確率形式における制約付き Langevin 方程式」日本物理学会第 78 回年次大会 18aT29（於東北大学）, 2023 年 9 月 16 日 - 19 日.
  3. 「Stochastic Inflation における Borel 総和法の適用」日本物理学会 2023 年春季大会 24aW1（オンライン）, 2023 年 3 月 22日 - 25日.
  4. 「二点相関による原始ブラックホール質量関数の補正」日本物理学会 2022 年秋季大会 6pA123（於岡山理科大学）, 2022 年 9 月 6 日 - 8 日.
  5. 「揺らぎの二点相関を取り入れた原始ブラックホール存在量の評価」日本物理学会第 77 回年次大会 17pA421（オンライン）, 2022 年 3 月 15 日 - 19 日.
  6. 「ピークカウント法における球対称密度揺らぎの扱いとその物理的帰結」日本物理学会第 76 回年次大会 14aW1（オンライン）, 2021 年 3 月 12 日 - 15 日.
  7. 「原始ブラックホールの新しい質量関数と密度揺らぎの粗視化に伴うフィルター関数依存性」日本物理学会 2020 年秋季大会 15pSL（オンライン）, 2020 年 9 月 15 日.

Poster Presentations (International/Domestic)

  1. Stochastic Inflation: Review and Applications, Joint Workshop on General Relativity and Cosmology (JGRC3), Nishiyastu-Onsen Miyamoto-no-Yu, Chichibu, Saitama, Japan. (Mar. 10-11, 2025)
  2. 「インフレーション宇宙論に於ける確率的手法」第 37 回理論懇シンポジウム「宇宙論１００年：これまでとこれから」P48（於国立天文台）, 2024 年 12 月 24 日 - 26 日.
  3. Curvaton Distribution and Parameter-Space Structure Based on Exact Solutions, The 33rd Workshop on General Relativity and Gravitation in Japan (JGRG33), Kindai University, Osaka, Japan. (Dec. 2-6, 2024)
  4. Exact Solutions in Stochastic Inflation, COSMO'24, Kyoto University, Kyoto, Japan. (Oct. 21 - 25, 2024)
  5. 「原始ブラックホール質量スペクトルが持つ系統的バイアス」第 35 回理論懇シンポジウム「理論天文学・宇宙物理学の広がり：さらなる発展に向けて」P23（於コラッセふくしま）, 2022 年 12 月 21 日 - 23 日.
  6. Primordial black hole abundance from joint formation criteria, The Online Workshop on General Relativity and Gravitation in Japan (Online JGRG), Online. (Dec. 6 - 10, 2022)
  7. Spacetime Thermodynamics: to the Entropic Gravity [review], 第 49 回天文・天体物理若手夏の学校（於ロワジールホテル豊橋）, 2019 年 7 月 30 日 - 8 月 2 日.

Seminars

  1. [Lang: JP] Quantum Diffusion, Exact Solutions, and Multifield Models in Inflationary Cosmology, Okayama University of Science, Okayama, Japan.
  2. [Lang: JP] Stochastic Inflation and Exact Solutions, National Institute of Technology (NIT), Gunma Collage, Gunma, Japan.
  3. [Lang: EN] Exact Solutions in Stochastic Inflation, Joint Seminar on cosmology and related topics [HP], Interdisciplinary Theoretical and Mathematical Sciences Program (RIKEN), Saitama, Japan. (Oct. 10, 2024)
  4. [Lang: JP] Stochastic Methods in Inflationary Cosmology, C-Lab. Seminar [HP], Nagoya University, Japan. (Jun. 12, 2023)
  5. [Lang: JP] Borel resummation for secular divergences in stochastic inflation, TUHEP Seminar [HP], Tohoku University, Miyagi, Japan. (Dec. 12, 2023)
  6. [Lang: EN] Constrained random processes in stochastic inflation, Theoretical Physics Colloquium [HP], Rikkyo University, Tokyo, Japan. (Nov. 7, 2023)

Invited Presentations

  1. [To be] [Lang: JP] ???, 第14回観測的宇宙論ワークショップ [HP], Okayama Convention Center, Okayama, Japan. (Oct. 6 - 8, 2025)
  2. [To be] [Lang: EN] Stochastic Scalar Field Dynamics in dS from Quantum Deficient Oscillators, Tensions in Cosmology (Corfu 2025), Corfu, Greece. (Sep. 2 - 8, 2025)
  3. [To be] [Lang: EN] ???, New Perspectives on Cosmology 2025 [HP], Ewha Womans University, Seoul, Korea. (Aug. 25 - 27, 2025)
  4. [Lang: EN] Stochastic Inflation, Exact Solutions, and Multifields, Cosmology Beyond the Analytic Lamppost (CoBALt), Institute Pascal, Orsay, France. (June 16 - July 4, 2025)
  5. [Lang: EN] Stochastic Methods in Inflationary Cosmology, Workshop on particle physics and cosmology: Saga 2025 (Saga 2025), Saga University, Saga, Japan. (Feb. 12 - 14, 2025)
  6. [Lang: EN] Analytical Methods in Stochastic Inflation, Evolution of the inhomogeneous universe: From Inflation to structure formation (KEKCosmoAY2024), KEK, Tsukuba, Japan. (Nov. 6 - 8, 2024)
  7. [Lang: JP] Borel Resummation in Stochastic Inflation, YITP International Molecule-type Workshop -Revisiting cosmological non-linealities in the era of precision surveys- [HP], Yukawa Institute for Theoretical Physics, Kyoto, Japan. (July 13 - 28, 2023)