Basic Information

Email Address

• Email Address

  aoki.katsuki.2nkyoto-u.ac.jp

Professional Memberships

• From May 2019, To Present

  理論天文学宇宙物理学懇談会
• From May 2016, To Present

  素粒子論グループ
• From Jun. 2013, To Present

  日本物理学会

Academic Degree

• 15 Sep. 2014

  早稲田大学修士（理学）
• 15 Mar. 2017

  早稲田大学博士（理学）

Academic Resume (Graduate Schools)

• 早稲田大学, 大学院先進理工学研究科博士後期課程物理学及応用物理学専攻, 修了
• 早稲田大学, 大学院先進理工学研究科修士課程物理学及応用物理学専攻, 修了

Academic Resume (Undergraduate School/Majors)

• 早稲田大学, 先進理工学部物理学科, 卒業

Research History

• From Apr. 2026, To Present

  Saitama University, Graduate School of Science and Engineering, 助教
• From Jul. 2022, To Mar. 2026

  Kyoto University, Yukawa Institute for Theoretical Physics, 特定助教
• From Apr. 2022, To Jun. 2022

  Kyoto University, Yukawa Institute for Theoretical Physics, 特定研究員, 特任助教
• From Apr. 2019, To Mar. 2022

  Kyoto University, Yukawa Institute for Theoretical Physics, 日本学術振興会特別研究員, 特任助教
• From Apr. 2018, To Mar. 2019

  Waseda University, Faculty of Science and Engineering, 講師（任期付）
• From Apr. 2015, To Mar. 2018

  Waseda University, Faculty of Science and Engineering, 日本学術振興会特別研究員

ID,URL

• ORCID ID

  0000-0002-9616-096X

• J-Global ID

  201801020917636027

• Researcher number

  80822288

researchmap URL

• https://researchmap.jp/katsuki-a12

Research

Research Interests

• 重力波
• ブラックホール
• 宇宙論
• 重力理論
• 有効場の理論
• 散乱振幅

Research Areas

• Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Papers

• Resumming scattering amplitudes for waveforms

  Katsuki Aoki; Andrea Cristofoli

  Journal of High Energy Physics, 24 Apr. 2026, Peer-reviewed

  
• Highly compact Proca stars with quartic self-interactions

  Aoki, K.; Minamitsuji, M.

  Physical Review D, 2023, Peer-reviewed

  Access this paper :

  
• Effective field theory of coupled dark energy and dark matter

  Katsuki Aoki; Jose Beltrán Jiménez; Masroor C. Pookkillath; Shinji Tsujikawa

  Physical Review D, 20 Feb. 2026, Peer-reviewed

  
• Effective field theory of chiral gravitational waves

  Katsuki Aoki; Tomohiro Fujita; Ryodai Kawaguchi; Kazuki Yanagihara

  Journal of Cosmology and Astroparticle Physics, 01 Feb. 2026, Peer-reviewed

  
• Quantum effects for black holes with on-shell amplitudes

  Katsuki Aoki; Andrea Cristofoli; Hyun Jeong; Matteo Sergola; Kaho Yoshimura

  Journal of High Energy Physics, 22 Dec. 2025, Peer-reviewed

  
• On-shell approach to black hole mergers

  Katsuki Aoki; Andrea Cristofoli; Yu-tin Huang

  Journal of High Energy Physics, 14 Jan. 2025, Peer-reviewed

  Access this paper :

  
• Anomalous thresholds for the S-matrix of unstable particles

  Katsuki Aoki; Yu-tin Huang

  Journal of High Energy Physics, 10 Sep. 2024, Peer-reviewed

  Access this paper :

  
• Cosmological perturbation theory in metric-affine gravity

  Katsuki Aoki; Sebastian Bahamonde; Jorge Gigante Valcarcel; Mohammad Ali Gorji

  Physical Review D, 09 Jul. 2024, Peer-reviewed

  
• Cosmology and the classical limit of the S-matrix

  Aoki, K.; Cristofoli, A.

  Journal of High Energy Physics, 2024, Peer-reviewed

  
• Gravitational positivity for phenomenologists: Dark gauge boson in the swampland

  Katsuki Aoki; Toshifumi Noumi; Ryo Saito; Sota Sato; Satoshi Shirai; Junsei Tokuda; Masahito Yamazaki

  Physical Review D, 02 Jul. 2024, Peer-reviewed

  
• CMB spectrum in unified EFT of dark energy: scalar-tensor and vector-tensor theories

  Katsuki Aoki; Mohammad Ali Gorji; Takashi Hiramatsu; Shinji Mukohyama; Masroor C. Pookkillath; Kazufumi Takahashi

  Journal of Cosmology and Astroparticle Physics, 01 Jul. 2024, Peer-reviewed

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• Exploring the spin of ultralight dark matter with gravitational wave detectors

  Yusuke Manita; Hiroki Takeda; Katsuki Aoki; Tomohiro Fujita; Shinji Mukohyama

  Physical Review D, 13 May 2024, Peer-reviewed

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• Erratum: Cosmology and gravitational waves in consistent D→ 4 Einstein-Gauss-Bonnet gravity (Journal of Cosmology and Astroparticle Physics (2020) 9 (14) DOI: 10.1103/PhysRevLett.118.221101)

  Katsuki Aoki; Mohammad Ali Gorji; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, 01 May 2021, Peer-reviewed

  
• Effective field theory of black hole perturbations in vector-tensor gravity

  Katsuki Aoki; Mohammad Ali Gorji; Shinji Mukohyama; Kazufumi Takahashi; Vicharit Yingcharoenrat

  Journal of Cosmology and Astroparticle Physics, 01 Mar. 2024, Peer-reviewed

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• Coupled vector Gauss-Bonnet theories and hairy black holes

  Aoki, K.; Tsujikawa, S.

  Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, Aug. 2023, Peer-reviewed

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• Spin-2 dark matter from an anisotropic universe in bigravity

  Yusuke Manita; Katsuki Aoki; Tomohiro Fujita; Shinji Mukohyama

  Physical Review D, 02 May 2023, Peer-reviewed

  
• Some disquisitions on cosmological 2-form dualities

  Aoki, K.; Beltr{\'a}n Jim{\'e}nez, J.; Figueruelo, D.

  Journal of Cosmology and Astroparticle Physics, Apr. 2023, Peer-reviewed

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• Cosmological gravity probes: Connecting recent theoretical developments to forthcoming observations

  Shun Arai; Katsuki Aoki; Yuji Chinone; Rampei Kimura; Tsutomu Kobayashi; Hironao Miyatake; Daisuke Yamauchi; Shuichiro Yokoyama; Kazuyuki Akitsu; Takashi Hiramatsu; Shin’ichi Hirano; Ryotaro Kase; Taishi Katsuragawa; Yosuke Kobayashi; Toshiya Namikawa; Takahiro Nishimichi; Teppei Okumura; Maresuke Shiraishi; Masato Shirasaki; Tomomi Sunayama; Kazufumi Takahashi; Atsushi Taruya; Junsei Tokuda

  Progress of Theoretical and Experimental Physics, Apr. 2023, Peer-reviewed

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• Unitarity and unstable-particle scattering amplitudes

  Aoki, K.

  Physical Review D, 27 Mar. 2023, Peer-reviewed

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• Resolving the pathologies of self-interacting Proca fields: A case study of Proca stars

  Aoki, K.; Minamitsuji, M.

  Physical Review D, 14 Oct. 2022, Peer-reviewed

  
• Is the Standard Model in the Swampland? Consistency Requirements from Gravitational Scattering

  Aoki, K.; Loc, T.Q.; Noumi, T.; Tokuda, J.

  Physical Review Letters, 25 Aug. 2021, Peer-reviewed

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• Nonlinearly ghost-free higher curvature gravity

  Aoki, K.

  Physical Review D, 21 Dec. 2020, Peer-reviewed

  
• Gravitational positivity bounds

  Tokuda, J.; Aoki, K.; Hirano, S.

  Journal of High Energy Physics, 11 Nov. 2020, Peer-reviewed

  
• Effective field theory of gravitating continuum: solids, fluids, and aether unified

  Katsuki Aoki; Mohammad Ali Gorji; Shinji Mukohyama; Kazufumi Takahashi

  Journal of Cosmology and Astroparticle Physics, 01 Aug. 2022, Peer-reviewed

  
• The effective field theory of vector-tensor theories

  Katsuki Aoki; Mohammad Ali Gorji; Shinji Mukohyama; Kazufumi Takahashi

  Journal of Cosmology and Astroparticle Physics, 01 Jan. 2022, Peer-reviewed

  
• Shift-symmetric () multi-Galileon

  Katsuki Aoki; Yusuke Manita; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, 01 Dec. 2021, Peer-reviewed

  
• Positivity vs. Lorentz-violation: an explicit example

  Katsuki Aoki; Shinji Mukohyama; Ryo Namba

  Journal of Cosmology and Astroparticle Physics, 01 Oct. 2021, Peer-reviewed

  
• Non-uniqueness of massless transverse-traceless graviton

  Katsuki Aoki; Francesco Di Filippo; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, 01 May 2021, Peer-reviewed

  
• Inflationary gravitational waves in consistent D → 4 Einstein-Gauss-Bonnet gravity

  Katsuki Aoki; Mohammad Ali Gorji; Shuntaro Mizuno; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, 26 Jan. 2021, Peer-reviewed

  
• Ghost from constraints: a generalization of Ostrogradsky theorem

  Katsuki Aoki; Hayato Motohashi

  Journal of Cosmology and Astroparticle Physics, 12 Aug. 2020, Peer-reviewed

  
• Minimally modified gravity fitting Planck data better than Λ CDM

  Aoki, K.; De Felice, A.; Mukohyama, S.; Noui, K.; Oliosi, M.; C. Pookkillath, M.

  European Physical Journal C, May 2020, Peer-reviewed

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• Cosmology and gravitational waves in consistent D 4 Einstein-Gauss-Bonnet gravity

  Aoki, K.; Gorji, M.A.; Mukohyama, S.

  Journal of Cosmology and Astroparticle Physics, May 2020, Peer-reviewed

  
• A consistent theory of D → 4 Einstein-Gauss-Bonnet gravity

  Aoki, K.; Gorji, M.A.; Mukohyama, S.

  Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, May 2020, Peer-reviewed

  
• Consistent inflationary cosmology from quadratic gravity with dynamical torsion

  Aoki, K.; Mukohyama, S.

  Journal of Cosmology and Astroparticle Physics, Mar. 2020, Peer-reviewed

  
• Ghostfree quadratic curvature theories with massive spin-2 and spin-0 particles

  Aoki, K.; Mukohyama, S.

  Physical Review D, Sep. 2019, Peer-reviewed

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• Scalar-metric-affine theories: Can we get ghost-free theories from symmetry?

  Aoki, K.; Shimada, K.

  Physical Review D, Aug. 2019, Peer-reviewed

  
• Metric-affine gravity and inflation

  Keigo Shimada; Katsuki Aoki; Kei-ichi Maeda

  Physical Review D, May 2019, Peer-reviewed

  
• Phenomenology in type-I minimally modified gravity

  Aoki, K.; Felice, A.D.; Lin, C.; Mukohyama, S.; Oliosi, M.

  Journal of Cosmology and Astroparticle Physics, Jan. 2019, Peer-reviewed

  
• Novel matter coupling in general relativity via canonical transformation

  Aoki, K.; Lin, C.; Mukohyama, S.

  Physical Review D, Aug. 2018, Peer-reviewed

  
• Galileon and generalized Galileon with projective invariance in a metric-affine formalism

  Aoki, K.; Shimada, K.

  Physical Review D, Aug. 2018, Peer-reviewed

  
• Massive graviton geons

  Katsuki Aoki; Kei-Ichi Maeda; Yosuke Misonoh; Hirotada Okawa

  Physical Review D, 05 Feb. 2018, Peer-reviewed

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• Condensate of massive graviton and dark matter

  Katsuki Aoki; Kei-Ichi Maeda

  Physical Review D, 01 Feb. 2018, Peer-reviewed

  
• Massive graviton dark matter with environment dependent mass: A natural explanation of the dark matter-baryon ratio

  Katsuki Aoki; Shinji Mukohyama

  PHYSICAL REVIEW D, Nov. 2017, Peer-reviewed

  
• Cosmological and astrophysical Vainshtein mechanism in bigravity

  Katsuki Aoki; Kei-ichi Maeda; Makoto Tanabe; Ryo Namba

  The Fourteenth Marcel Grossmann Meeting, Nov. 2017, Peer-reviewed

  
• Vainshtein mechanism in massive gravity nonlinear sigma models

  Katsuki Aoki; Shuntaro Mizuno

  PHYSICAL REVIEW D, Sep. 2016, Peer-reviewed

  
• Massive gravitons as dark matter and gravitational waves

  Katsuki Aoki; Shinji Mukohyama

  PHYSICAL REVIEW D, Jul. 2016, Peer-reviewed

  
• Relativistic stars in bigravity theory

  Katsuki Aoki; Kei-ichi Maeda; Makoto Tanabe

  PHYSICAL REVIEW D, Mar. 2016, Peer-reviewed

  
• Stability of the early universe in bigravity theory

  Katsuki Aoki; Kei-Ichi Maeda; Ryo Namba

  Physical Review D - Particles, Fields, Gravitation and Cosmology, 28 Aug. 2015, Peer-reviewed

  
• Stability of the early universe in bigravity theory

  Katsuki Aoki; Kei-ichi Maeda; Ryo Namba

  PHYSICAL REVIEW D, Aug. 2015, Peer-reviewed

  
• Dark matter in ghost-free bigravity theory: From a galaxy scale to the universe

  Katsuki Aoki; Kei-ichi Maeda

  PHYSICAL REVIEW D, Dec. 2014, Peer-reviewed

  
• Cosmology in ghost-free bigravity theory with twin matter fluids: The origin of dark matter

  Katsuki Aoki; Kei-ichi Maeda

  PHYSICAL REVIEW D, Mar. 2014, Peer-reviewed

  

Presentations

• 散乱振幅からブラックホールへ

  青木勝輝

  第10回ブラックホール研究会, 28 Feb. 2026, Invited

  
• From Scattering Amplitudes to Black Holes

  青木勝輝

  CAU BSM Focus, 11 Feb. 2026, Invited

  
• EFTs across the Universe

  青木勝輝

  iTHEMS Cosmology Forum, 29 Jan. 2026, Invited

  
• From Scattering Amplitudes to Black Holes

  青木勝輝

  セミナー@KEK, 13 Jan. 2026, Invited

  
• Quantum Effects for Black Holes with On-Shell Amplitudes

  青木勝輝

  セミナー@日本大学, 14 Nov. 2025, Invited

  
• From Scattering Amplitudes to Black Holes

  青木勝輝

  セミナー@Penn state U., 21 Oct. 2025, Invited

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  COSMO25, 16 Oct. 2025

  
• From Scattering Amplitudes to Black Holes

  青木勝輝

  ISQBS2025, 10 Oct. 2025, Invited

  
• From Scattering Amplitudes to Gravity, and to Waves

  青木勝輝

  New ideas in particle physics and cosmology, 30 Sep. 2025, Invited

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  素粒子物理学の進展2025, 03 Sep. 2025

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  場の理論と弦理論, 29 Jul. 2025

  
• On-shell Approach to Black Hole Mergers (and Hawking Radiation)

  青木勝輝

  セミナー@茨城大学, 11 Jul. 2025, Invited

  
• On-shell Approach to Black Hole Mergers (and Hawking Radiation)

  青木勝輝

  竹原重力・宇宙論研究会, 05 Jul. 2025

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  Effective Field Theories, Gravity and Cosmology, 28 Apr. 2025, Invited

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  Joint Seminar, 23 Dec. 2024, Invited

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  QCD Meets Gravity 2024, 12 Dec. 2024, Invited

  
• On-shell Approach to Black Hole Mergers

  青木勝輝

  JGRG33, 06 Dec. 2024

  
• Unified EFT of Dark Energy

  青木勝輝

  THxOBS, 26 Oct. 2024, Invited

  
• Cosmology and the classical limit of the S-matrix

  青木勝輝

  日本物理学会, 17 Sep. 2024

  
• Anomalous Thresholds for the S-matrix of Unstable Particles

  青木勝輝

  下関研究会, 04 Aug. 2024

  
• Anomalous Thresholds for the S-matrix of Unstable Particles

  青木勝輝

  APCTP-KIAS workshop, 01 Aug. 2024, Invited

  
• Unified EFT of Dark Energy

  青木勝輝

  CosmoGravitas, 12 Jun. 2024, Invited

  
• Unified EFT of Dark Energy

  青木勝輝

  Early Universe and AliCPT Forum, 05 Jun. 2024, Invited

  
• Analytic S-matrix of Unstable Particles

  青木勝輝

  Kanto-NTU HEP Workshop, 15 Jan. 2024, Invited

  
• Towards S-matrix theory of unstable particles

  青木勝輝

  東海ミーティング, 18 Dec. 2023, Invited

  
• Is a scalar field everything about dark sectors/modified gravity?

  青木勝輝

  第12回 観測的宇宙論ワークショップ, 12 Dec. 2023, Invited

  
• Towards bootstrapping quantum gravity: Unitarity of heavy particles

  青木勝輝

  JGRG32, 30 Nov. 2023

  
• Towards quantum gravity constraints from S-matrix

  青木勝輝

  14th Taiwan String Workshop, 31 Oct. 2023, Invited

  
• Towards S-matrix theory of unstable particles

  青木勝輝

  セミナー@KEK, 24 Oct. 2023, Invited

  
• Towards quantum gravity constraints from S-matrix

  青木勝輝

  BIG&C meeting, 18 Sep. 2023, Invited

  
• The Effective Field Theory of Vector-Tensor Theories

  青木勝輝

  COSMO'23, 15 Sep. 2023

  
• 不安定粒子の散乱振幅と正値性

  青木勝輝

  素粒子物理学の進展2023, 31 Aug. 2023

  
• Towards S-matrix theory of unstable particles

  青木勝輝

  場の理論と弦理論2023, 07 Aug. 2023

  
• Effective Field Theory Approaches to Cosmology

  青木勝輝

  IBS CTPU-CGA Workshop on Modified Gravity, 20 Jun. 2023, Invited

  
• Towards S-matrix theory of unstable particles

  青木勝輝

  セミナー@東大駒場, 17 May 2023, Invited

  
• Massive graviton as dark matter

  青木勝輝

  セミナー@Central China Normal U., 31 Mar. 2023, Invited

  
• Towards S-matrix theory of unstable particles

  青木勝輝

  セミナー@iTHEMS, 15 Mar. 2023, Invited

  
• Effective Field Theory Approaches to Cosmology

  青木勝輝

  JGRC, 14 Mar. 2023, Invited

  
• Gravitational Positivity Bounds

  青木勝輝

  セミナー@RESCEU, 06 Feb. 2023, Invited

  
• Positivity beyond tree level

  青木勝輝

  NRF-JSPS 2023 Winter-I, 14 Jan. 2023, Invited

  
• The Effective Field Theory of Vector-Tensor Theories

  青木勝輝

  Korea-Japan Workshop on Dark Energy, 15 Nov. 2022, Invited

  
• The Effective Field Theory of Vector-Tensor Theories

  青木勝輝

  JGRG31, 27 Oct. 2022

  
• Effective Field Theory of Gravitating Continuum: Solids, Fluids, and Aether Unified

  青木勝輝

  物理学会2022年秋季大会, 07 Sep. 2022

  
• Gravitational Positivity Bounds

  青木勝輝

  セミナー@東大駒場, 20 Apr. 2022, Invited

  
• Gravitational Positivity Bounds

  青木勝輝

  セミナー@TIFR, 28 Mar. 2022, Invited

  
• The Effective Field Theory of Vector-Tensor Theories

  青木勝輝

  日本物理学会, 17 Mar. 2022

  
• The Effective Field Theory of Vector-Tensor Theories

  青木勝輝

  Dawn of Gravitational-wave Cosmology and Theory of Gravity, 04 Mar. 2022, Invited

  
• The Effective Field Theory of Vector-Tensor Theories

  青木勝輝

  THxOBS, 28 Feb. 2022

  
• Positivity vs. Lorentz-violation

  青木勝輝

  JGRG30, 07 Dec. 2021

  
• Is the Standard Model in the Swampland? Consistency Requirement from Gravitational Scattering

  青木勝輝

  セミナー@国立台湾大学, 03 Dec. 2021, Invited

  
• Is the Standard Model in the Swampland? Consistency Requirement from Gravitational Scattering

  青木勝輝

  セミナー@iTHEMS, 02 Nov. 2021, Invited

  
• Positivity vs. Lorentz-violation

  青木勝輝

  8th Korea-Japan workshop on Dark Energy, 20 Oct. 2021, Invited

  
• UV consistency of gravitational and cosmological EFTs

  青木勝輝

  AAPPS-DACG Workshop 2021, 05 Oct. 2021, Invited

  
• Is the Standard Model in the Swampland?

  青木勝輝

  日本物理学会, 17 Sep. 2021

  
• Positivity Bounds on Standard Model and General Relativity

  青木勝輝

  日本物理学会, 16 Sep. 2021

  
• Is the Standard Model in the Swampland?

  青木勝輝

  Strings and Fields 2021, 23 Aug. 2021

  
• Is the Standard Model in the Swampland?

  青木勝輝

  セミナー@京大基研, 09 Jul. 2021, Invited

  
• A consistent theory of four-dimensional Einstein-Gauss-Bonnet gravity: theory and cosmology

  青木勝輝

  Majorana-Raychaudhuri webinar, 09 Jul. 2021, Invited

  
• Nonlinearly ghost-free higher curvature gravity

  青木勝輝

  Geometric Fundations of Gravity 2021, 02 Jul. 2021

  
• Is the Standard Model in the Swampland?

  青木勝輝

  セミナー@早稲田大学, 28 May 2021, Invited

  
• Non-linearly ghost-free higher curvature gravity

  青木勝輝

  JGRG Webinar, 29 Mar. 2021

  
• Non-linearly ghost-free higher curvature gravity

  青木勝輝

  セミナー@Sapienza University of Rome, 25 Jan. 2021, Invited

  
• Non-linearly ghost-free higher curvature gravity

  青木勝輝

  JGRG2020, 23 Nov. 2020

  
• Gravitational Positivity Bounds

  青木勝輝

  APP/IFPU Webinar, 24 Sep. 2020, Invited

  
• Consistent inflationary cosmology from quadratic gravity with dynamical torsion

  青木勝輝

  日本物理学会, 15 Sep. 2020

  
• Quadratic Curvature Theory in Riemann-Cartan Geometry: Theory and Application to Cosmology

  青木勝輝

  セミナー@早稲田大学, 29 Jan. 2020

  
• Ghostfree quadratic curvature theory with massive spin-2 and spin-0 particles

  青木勝輝

  6th Korea-Japan workshop on dark energy at KMI, 02 Dec. 2019, Invited

  
• Ghostfree quadratic curvature theory with massive spin-2 and spin-0 particles

  青木勝輝

  JGRG29, 25 Nov. 2019

  
• 計量アフィン形式におけるスカラーテンソル理論と射影対称性

  青木勝輝

  日本物理学会, 17 Sep. 2019

  
• Quadratic curvature theory with non-ghost massive spin-2 and massive spin-0 particles

  青木勝輝

  セミナー@東工大, 12 Sep. 2019

  
• Quadratic curvature theory with a non-ghost massive spin-2 particle in Riemann-Cartan geometry

  青木勝輝

  COSMO19, 05 Sep. 2019

  
• Scalar-tensor theories beyond Riemannian

  青木勝輝

  Beyond General Relativity, Beyond Cosmological Standard Model, 05 Jul. 2019

  
• Ghost-free scalar-tensor theories in metric-affine formalism

  青木勝輝

  JGRG28, 06 Nov. 2018

  
• Novel matter coupling in general relativity via canonical transformation

  青木勝輝

  日本物理学会, 15 Sep. 2018

  
• Galileon and generalized Galileon with projective invariance in metric-affine formalism

  青木勝輝

  COSMO18, 30 Aug. 2018

  
• Scalar-tensor theories in metric-affine formalism

  青木勝輝

  MOGRA2018, 08 Aug. 2018

  
• Massive Graviton Geons

  青木勝輝

  日本物理学会, 20 Mar. 2018

  
• On canonical transformation of GR and minimal modified gravity theories

  青木勝輝

  Joint Seminar, 12 Mar. 2018

  
• Massive Graviton Geons: self-gravitating massive gravitational waves

  青木勝輝

  若手研究会, Mar. 2018

  
• Massive Graviton Geons: self-gravitating massive gravitational waves

  青木勝輝

  GC2018, 13 Feb. 2018

  
• Massive Gravitons as Dark Matter

  青木勝輝

  CosPA2017, 14 Dec. 2017

  
• Massive gravitons as dark matter

  青木勝輝

  セミナー@北海道大学, 01 Dec. 2017, Invited

  
• Massive Graviton Geons: self-gravitating massive gravitational waves

  青木勝輝

  セミナー@ICG, 18 Oct. 2017, Invited

  
• 質量をもった重力子の凝縮とダークマター

  青木勝輝

  日本物理学会, 14 Sep. 2017

  
• Massive Gravitons and Dark Matter

  青木勝輝

  COSMO17, 31 Aug. 2017

  
• Massive gravitons as dark matter and gravitational waves

  青木勝輝

  セミナー@KEK, 24 Nov. 2016, Invited

  
• Vainshtein mechanism in massive gravity nonlinear sigma models

  青木勝輝

  JGRG26, 29 Oct. 2016

  
• Bigravitons as dark matter and gravitational waves

  青木勝輝

  日本物理学会, 21 Sep. 2016

  
• Bigravitons as dark matter and gravitational waves

  GR21, 10 Jul. 2016

  
• Bigravitons as dark matter and gravitational waves

  青木勝輝

  セミナー@RESCEU, 20 Jun. 2016, Invited

  
• Stability of the Early Universe in Bigravity Theory

  青木勝輝

  セミナー@神戸大学, Jan. 2016

  
• Relativistic stars in the bigravity theory

  青木勝輝

  JGRG25, Dec. 2015

  
• Cosmology and Astrophysics in the Bigravity Theory

  青木勝輝

  セミナー@名古屋大学, Nov. 2015, Invited

  
• Cosmology and Astrophysics in the Bigravity Theory

  青木勝輝

  セミナー@立教大学, Nov. 2015, Invited

  
• Cosmological and Astrophysical Vainshtein mechanism in bigravity

  青木勝輝

  Fourteenth Marcel Grossmann Meeting, Sep. 2015

  
• Cosmological and Astrophysical Vainshtein mechanism in bigravity

  青木勝輝

  2nd APCTP-TUS workshop on Dark Energy, Aug. 2015

  
• Stability of the Early Universe in Bigravity Theory

  青木勝輝

  セミナー@東工大, Jul. 2015, Invited

  
• Time-dependent screening and stability around FLRW background in bigravity

  青木勝輝

  日本物理学会, Mar. 2015

  
• Dark matter in ghost-free bigravity theory

  青木勝輝

  JGRG24, Nov. 2014

  
• The origin of dark components in ghost-free bigravity theory

  青木勝輝

  Joint Seminar, Jul. 2014

  
• Bigravity理論とダークマター問題への応用

  青木勝輝

  日本物理学会, Mar. 2014

  
• Cosmology in ghost-free bigravity theory with twin matter fluid

  青木勝輝

  JGRG23, Nov. 2013

  
• bigravity 理論に基づく宇宙論とダークエネルギー問題,

  青木勝輝

  日本物理学会, Sep. 2013

  

External funds: Kakenhi

• Exploring fundamental variables of gravity through early universe observations

  Grant-in-Aid for Early-Career Scientists

  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

  Kyoto University

  Katsuki Aoki

  From 01 Apr. 2020, To 31 Mar. 2024, Project Closed

  重力理論;宇宙論;量子重力理論

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K14468/
• Study on gravity and cosmology with EFT and S-matrix methods

  Grant-in-Aid for Early-Career Scientists

  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

  Kyoto University

  青木 勝輝

  From 01 Apr. 2024, To 31 Mar. 2028, Granted

  重力;散乱振幅;宇宙論;量子重力理論;散乱理論

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K17046/
• Gravitational waves and scattering amplitudes

  Grant-in-Aid for JSPS Fellows

  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

  Kyoto University

  青木 勝輝

  From 01 Oct. 2024, To 31 Mar. 2027, Granted

  Scattering amplitudes;Gravitational waves

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24KF0153/

Academic, Social Contribution

Committee Memberships

• From Dec. 2025, To Nov. 2027

  運営委員, 理論天文学宇宙物理学懇談会
• From Oct. 2024, To Sep. 2025

  事務局長, 理論天文学宇宙物理学懇談会

Academic Contribution

• Theoretical Developments in Gravitational Wave Physics

  Planning, management, etc.

  京大基研, From 15 Jun. 2026, To 19 Jun. 2026

  
• JGRG34

  Planning, management, etc.

  京大基研, From 19 Jan. 2026, To 23 Jan. 2026

  
• Progress of Theoretical Bootstrap

  Planning, management, etc.

  京大基研, From 27 Oct. 2025, To 28 Nov. 2025

  
• Gravity 2025: New Horizon of Black Hole Physics

  Planning, management, etc.

  京大基研, From 27 Jan. 2025, To 31 Jan. 2025

  
• COSMO'24

  Planning, management, etc.

  京都大学, From 21 Oct. 2024, To 25 Oct. 2024

  
• Gravity and Cosmology 2024

  Planning, management, etc.

  京大基研, From 29 Jan. 2024, To 01 Mar. 2024

  
• Gravity 2023: Dawn of field theoretic approach

  Planning, management, etc.

  京大基研, From 18 Jul. 2023, To 20 Jul. 2023

  
• Gravity: Current challenges in black hole physics and cosmology

  Planning, management, etc.

  京大基研, From 20 Jun. 2022, To 01 Jul. 2022

  
• Gravity - The Next Generation-

  Planning, management, etc.

  京大基研, From 14 Feb. 2022, To 18 Feb. 2022