Talks and Slides

moonshine現象の紹介 (Introduction to moonshine phenomena) (2026/2/25)

Blackboard talk at "RFCMP2026 Mini Workshop on Moonshine Theory and SUSY QFT", held at RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences.
More details of the topics mentioned in the talk can be found in these supplementary notes [notes] (last update: 2026/2/15), edited from the review parts of my PhD thesis.

[handwritten notes] On anomalies and fermionic unitary operators (2026/1/28)

Blackboard talk at 伊藤今村研セミナー, Institute of Science Tokyo.

[slides] On orbifolds of 2d chiral fermionic CFTs by finite non-abelian groups (2025/9/17)

Talk at "日本物理学会第80回年次大会 (The Physical Society of Japan 2025 Annual (80th) Meeting)", held at Hiroshima University.
(The description in these slides [slides] used in my PhD defense is more refined.)
（忙しくて急いで準備したので内容的に粗が目立つ。博論審査会で使ったスライド [slides] の方が良いかもしれない。 宿泊していた広島駅から会場の西条駅までの電車内で追加の結果が出たので、慌てて追記した形跡が残っている。）

[poster] On the Symmetry of Lattice CFTs (2025/6/23–28)

Poster session at "String-Math 2025", held at Beijing Institute of Mathematical Sciences and Applications (BIMSA).

[slides (handwritten)] Moonshine Phenomena and Symmetries of Lattice CFTs (2025/2/19)

Talk at "2nd FoPM International Symposium", The University of Tokyo.
(A talk for non-specialists.)

[slides] On the Mathieu group symmetry of an odd Leech lattice CFT (2024/9/16)

Talk at "日本物理学会第79回年次大会 (The Physical Society of Japan 2024 Annual (79th) Meeting)", held at Hokkaido University.
（10–15分の発表なのにスライドの内容がごちゃごちゃし過ぎているかもしれない。）

[slides] Non-invertible symmetries act locally by quantum operations (2024/5/22)

5-min gong show talk at "BPS Dynamics and Quantum Mathematics", Workshop at Galileo Galilei Institute.

[slides] Asymptotic density of states in 2d CFTs with non-invertible symmetries (2023/9/16)

Talk at "日本物理学会第78回年次大会 (The Physical Society of Japan 2023 Annual (78th) Meeting)", held at Tohoku University.
(I recommend the talk [slides] [video] by Tachikawa-san, "On asymptotic density of states in 2d CFT with symmetry" at Yasu Festa 60.)
（私のスライドより、立川さんのYasu Festa 60での講演 [slides] [video] を参照することをおすすめします。）

[slides] Towards Hodge Theoretic Characterizations of 2d Rational SCFTs (2023/2/7)

Poster session at "FoPM International Symposium", The University of Tokyo.

Asymptotic density of states in 2d CFTs with non-invertible symmetries (2022/10/19)

Blackboard talk at Komaba Particle Theory Group Weekly Seminar, The University of Tokyo.

Asymptotic density of states in 2d CFTs with non-invertible symmetries (2022/9/7)

Blackboard talk at IPMU non-invertible journal club.

[slides] Towards Hodge Theoretic Characterizations of 2d Rational SCFTs (2022/8/19)

Online poster session at "場の理論と弦理論2022", Yukawa Institute for Theoretical Physics (YITP), Kyoto University.

Asymptotic density of states in 2d CFTs with non-invertible symmetries (2022/8/10)

Online 10–15 min gong show talk at "The 1st SUIAS workshop in HEP: Supersymmetry and Gravitation", Suzhou Institute for Advanced Research (SUIAS), University of Science and Technology of China.