Basic Information

Email Address

• Email Address

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

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

ID,URL

• ORCID ID

  0000-0002-9616-096X

• J-Global ID

  201801020917636027

• Researcher number

  80822288

researchmap URL

• https://researchmap.jp/katsuki-a12

Research

Research Areas

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

Papers

• 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

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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

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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

  
• 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

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• Coupled vector Gauss-Bonnet theories and hairy black holes

  Katsuki Aoki; Shinji Tsujikawa

  Physics Letters B, Aug. 2023

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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

  
• Some disquisitions on cosmological 2-form dualities

  Katsuki Aoki; Jose Beltrán Jiménez; David Figueruelo

  Journal of Cosmology and Astroparticle Physics, Apr. 2023

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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

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• Unitarity and unstable-particle scattering amplitudes

  Katsuki Aoki

  Physical Review D, 27 Mar. 2023

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• Highly compact Proca stars with quartic self-interactions

  Katsuki Aoki; Masato Minamitsuji

  Physical Review D, Feb. 2023

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

  Katsuki Aoki; Masato Minamitsuji

  Physical Review D, 14 Oct. 2022

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

  Katsuki Aoki; Tran Quang Loc; Toshifumi Noumi; Junsei Tokuda

  Physical Review Letters, 25 Aug. 2021

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• Nonlinearly ghost-free higher curvature gravity

  Katsuki Aoki

  Physical Review D, 21 Dec. 2020

  
• Gravitational positivity bounds

  Junsei Tokuda; Katsuki Aoki; Shin’ichi Hirano

  Journal of High Energy Physics, 11 Nov. 2020

  
• 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

  
• 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

  
• Shift-symmetric () multi-Galileon

  Katsuki Aoki; Yusuke Manita; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, 01 Dec. 2021

  
• Positivity vs. Lorentz-violation: an explicit example

  Katsuki Aoki; Shinji Mukohyama; Ryo Namba

  Journal of Cosmology and Astroparticle Physics, 01 Oct. 2021

  
• Non-uniqueness of massless transverse-traceless graviton

  Katsuki Aoki; Francesco Di Filippo; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, 01 May 2021

  
• 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

  
• Ghost from constraints: a generalization of Ostrogradsky theorem

  Katsuki Aoki; Hayato Motohashi

  Journal of Cosmology and Astroparticle Physics, 12 Aug. 2020

  
• Minimally Modified Gravity fitting Planck data better than ΛCDM

  Katsuki Aoki; Antonio De Felice; Shinji Mukohyama; Karim Noui; Michele Oliosi; Masroor C. Pookkillath

  The European Physical Journal C, May 2020

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

  Katsuki Aoki; Mohammad Ali Gorji; Shinji Mukohyama

  Journal of Cosmology and Astroparticle Physics, May 2020

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

  Katsuki Aoki; Mohammad Ali Gorji; Shinji Mukohyama

  Physics Letters B, May 2020

  
• Consistent inflationary cosmology from quadratic gravity with dynamical torsion

  Katsuki Aoki; Shinji Mukohyama

  Mar. 2020

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

  Katsuki Aoki; Shinji Mukohyama

  Physical Review D, Sep. 2019, Peer-reviewed

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

  Katsuki Aoki; Keigo Shimada

  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

  Katsuki Aoki; Antonio De Felice; Chunshan Lin; Shinji Mukohyama; Michele Oliosi

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

  
• Novel matter coupling in general relativity via canonical transformation

  Katsuki Aoki; Chunshan Lin; Shinji Mukohyama

  Physical Review D, Aug. 2018, Peer-reviewed

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

  Katsuki Aoki; Keigo Shimada

  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

  

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/