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Saito Ryo  齊藤 遼

ORCIDConnect your ORCID iD *help
Researcher Number 70781392
Other IDs
Affiliation (Current) 2025: 山口大学, 大学院創成科学研究科 , 准教授
Affiliation (based on the past Project Information) *help 2021 – 2024: 山口大学, 大学院創成科学研究科, 講師
2017 – 2021: 山口大学, 大学院創成科学研究科, 助教
Review Section/Research Field
Principal Investigator
Particle/Nuclear/Cosmic ray/Astro physics
Except Principal Investigator
Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics / Transformative Research Areas, Section (II)
Keywords
Principal Investigator
宇宙物理 / 重力波 / スカラーテンソル理論 / 修正重力理論 / 背景重力波 / 宇宙マイクロ波背景放射 / 第5の力 / 重力理論
Except Principal Investigator
重力波 / 宇宙大規模構造 … More / 宇宙マイクロ波背景放射 / 相対論的宇宙論 / 初期宇宙論 / 沼地予想 / ダークマター / 超弦理論 / 量子重力 Less
  • Research Projects

    (4 results)
  • Research Products

    (32 results)
  • Co-Researchers

    (7 People)
  •  超精密かつ多スケール・多粒子観測時代における相対論的宇宙論の確立と宇宙像の探求

    • Principal Investigator
      成子 篤
    • Project Period (FY)
      2023 – 2026
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
    • Research Institution
      Kyoto University
  •  Dark Matter in Quantum Gravity

    • Principal Investigator
      山崎 雅人
    • Project Period (FY)
      2020 – 2024
    • Research Category
      Grant-in-Aid for Transformative Research Areas (A)
    • Review Section
      Transformative Research Areas, Section (II)
    • Research Institution
      The University of Tokyo
  •  Next-generation relativistic cosmology in the era of precision observations

    • Principal Investigator
      Naruko Atsushi
    • Project Period (FY)
      2019 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
    • Research Institution
      Kyoto University
  •  Tests of gravity through the fifth forcePrincipal Investigator

    • Principal Investigator
      Saito Ryo
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Particle/Nuclear/Cosmic ray/Astro physics
    • Research Institution
      Yamaguchi University

All 2024 2023 2022 2021 2020 2019 2018 2017

All Journal Article Presentation

  • [Journal Article] Can we explain cosmic birefringence without a new light field beyond Standard Model?2024

    • Author(s)
      Yuichiro Nakai, Ryo Namba, Ippei Obata, Yu-Cheng Qiu, Ryo Saito
    • Journal Title

      Journal of High Energy Physics

      Volume: 01 Issue: 1 Pages: 057-057

    • DOI

      10.1007/jhep01(2024)057

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K14702, KAKENHI-PLANNED-20H05859, KAKENHI-PLANNED-20H05860
  • [Journal Article] Antipodal angular correlations of inflationary stochastic gravitational wave background2023

    • Author(s)
      Wu Zhen-Yuan、Sakai Nobuyuki、Saito Ryo
    • Journal Title

      Physical Review D

      Volume: 107 Issue: 2 Pages: 1-12

    • DOI

      10.1103/physrevd.107.023503

    • Data Source
      KAKENHI-PROJECT-19H01891
  • [Journal Article] Ostrogradsky mode in scalar?tensor theories with higher-order derivative couplings to matter2023

    • Author(s)
      Naruko Atsushi、Saito Ryo、Tanahashi Norihiro、Yamauchi Daisuke
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2023 Issue: 5 Pages: 1-21

    • DOI

      10.1093/ptep/ptad049

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-19H01891, KAKENHI-PROJECT-22K03627, KAKENHI-PROJECT-18K03623, KAKENHI-PLANNED-20H05860, KAKENHI-PLANNED-21H05189
  • [Journal Article] Unified approach to secondary effects on the CMB B-mode polarization2021

    • Author(s)
      Namikawa Toshiya、Naruko Atsushi、Saito Ryo、Taruya Atsushi、Yamauchi Daisuke
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2021 Issue: 10 Pages: 029-029

    • DOI

      10.1088/1475-7516/2021/10/029

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H01891, KAKENHI-PROJECT-17K14286, KAKENHI-PROJECT-17K14304, KAKENHI-PLANNED-20H05852, KAKENHI-PLANNED-20H05860, KAKENHI-PROJECT-23K20844
  • [Journal Article] Dynamical analysis of screening in scalar-tensor theory2021

    • Author(s)
      Nakamura Tomohiro、Ikeda Taishi、Saito Ryo、Tanahashi Norihiro、Yoo Chul-Moon
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 2 Pages: 1-19

    • DOI

      10.1103/physrevd.103.024009

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286, KAKENHI-PROJECT-19H01891, KAKENHI-PLANNED-20H05860, KAKENHI-PROJECT-19H01895
  • [Journal Article] Is the trans-Planckian censorship a swampland conjecture?2020

    • Author(s)
      Saito Ryo、Shirai Satoshi、Yamazaki Masahito
    • Journal Title

      Physical Review D

      Volume: 101 Issue: 4 Pages: 046022-046022

    • DOI

      10.1103/physrevd.101.046022

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K14286, KAKENHI-PROJECT-18K13535, KAKENHI-PUBLICLY-19H04609, KAKENHI-PROJECT-19H00689, KAKENHI-PROJECT-19H01891
  • [Journal Article] Local-gravity test of unified models of inflation and dark energy in f(R) gravity2020

    • Author(s)
      Yashiki Mai、Sakai Nobuyuki、Saito Ryo
    • Journal Title

      Physical Review D

      Volume: 102 Issue: 4 Pages: 043504-043504

    • DOI

      10.1103/physrevd.102.043504

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K14286, KAKENHI-PROJECT-19J12990, KAKENHI-PROJECT-19H01891
  • [Journal Article] Chameleon field in a spherical shell system2019

    • Author(s)
      Nakamura Tomohiro、Ikeda Taishi、Saito Ryo、Yoo Chul-Moon
    • Journal Title

      Physical Review D

      Volume: 99 Issue: 4 Pages: 044024-044024

    • DOI

      10.1103/physrevd.99.044024

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K14286, KAKENHI-PROJECT-16K17688
  • [Journal Article] Phenomenological consequences of the refined swampland conjecture2019

    • Author(s)
      Fukuda Hajime、Saito Ryo、Shirai Satoshi、Yamazaki Masahito
    • Journal Title

      Physical Review D

      Volume: 99 Issue: 8 Pages: 083520-083520

    • DOI

      10.1103/physrevd.99.083520

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16J03307, KAKENHI-PROJECT-17K14286
  • [Journal Article] Scalar-tensor theories and modified gravity in the wake of GW1708172018

    • Author(s)
      Langlois David、Saito Ryo、Yamauchi Daisuke、Noui Karim
    • Journal Title

      Physical Review D

      Volume: 97 Issue: 6 Pages: 1-5

    • DOI

      10.1103/physrevd.97.061501

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286, KAKENHI-PROJECT-17K14304
  • [Presentation] Identifying the inflationary GW background in other stochastic signals2023

    • Author(s)
      Ryo Saito
    • Organizer
      「超精密かつ多スケール・多粒子観測時代における相対論的宇宙論の確立と宇宙像の探求」 第1回ワークショップ
    • Invited
    • Data Source
      KAKENHI-PLANNED-20H05860
  • [Presentation] Ostrogradsky mode in scalar-tensor theories with higher-order derivative couplings to matter2023

    • Author(s)
      Ryo Saito
    • Organizer
      JGRG32
    • Int'l Joint Research
    • Data Source
      KAKENHI-PLANNED-20H05860
  • [Presentation] 宇宙マイクロ波背景放射異方性の精密計算:非線形効果に対する統一的アプロ ーチ2022

    • Author(s)
      齊藤 遼
    • Organizer
      Upcoming CMB observations and Cosmology
    • Invited
    • Data Source
      KAKENHI-PLANNED-20H05860
  • [Presentation] Angular correlations of the inflationary stochastic gravitational wave background2022

    • Author(s)
      齊藤 遼
    • Organizer
      Dawn of Gravitational-wave Cosmology and Theory of Gravity
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] 宇宙マイクロ波背景放射異方性の精密計算:非線形効果に対する統一的アプローチ2022

    • Author(s)
      齊藤 遼
    • Organizer
      Upcoming CMB observations and Cosmology
    • Invited
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Angular correlations of the inflationary stochastic gravitational wave background2022

    • Author(s)
      Ryo Saito
    • Organizer
      Dawn of Gravitational-wave Cosmology and Theory of Gravity
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PLANNED-20H05860
  • [Presentation] Angular correlations of the inflationary stochastic gravitational wave background in the perturbed universe2022

    • Author(s)
      齊藤 遼、呉 震遠、坂井 伸之
    • Organizer
      日本物理学会第77回年次大会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Antipodal correlations of the inflationary primordial gravitational waves2022

    • Author(s)
      呉 震遠、坂井 伸之、齊藤 遼
    • Organizer
      日本物理学会第77回年次大会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] CMB Bモード偏光への非線形効果に対する統一的アプローチ2021

    • Author(s)
      齊藤 遼
    • Organizer
      日本物理学会第76回年次大会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Antipodal correlation of the inflationary primordial gravitational waves2021

    • Author(s)
      呉 震遠、坂井 伸之、齊藤 遼
    • Organizer
      The 30th Workshop on General Relativity and Gravitation in Japan
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] 宇宙マイクロ波背景放射異方性の 精密計算法の開発: 非線形効果に対する統一的アプローチ2021

    • Author(s)
      齊藤 遼
    • Organizer
      応用物理・物理系学会中国四国支部合同学術講演会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Curve-of-sight approach for CMB polarizations: intrinsic B mode beyond lensing2019

    • Author(s)
      齊藤遼
    • Organizer
      The 29th Workshop on General Relativity and Gravitation in Japan
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Cosmic microwave background anisotropies beyond linear order: curve-of-sight approach2019

    • Author(s)
      齊藤遼
    • Organizer
      6th Korea-Japan workshop on dark energy at KMI
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] 高階スカラーテンソル理論におけるpreferred frame効果について2019

    • Author(s)
      齊藤 遼
    • Organizer
      日本物理学会第74回年次大会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] 原始ブラックホールと非線形背景重力波・音響再加熱2019

    • Author(s)
      齊藤遼
    • Organizer
      日本物理学会2019年秋季大会
    • Invited
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] The Vainshtein mechanism in general scalar-tensor theories2018

    • Author(s)
      齊藤 遼
    • Organizer
      YKIS2018a Symposium: General Relativity - The Next Generation
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Scalar-tensor theories and modified gravity in the wake of GW1708172018

    • Author(s)
      齊藤 遼
    • Organizer
      日本物理学会2018年秋季大会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Scalar-tensor theories and modified gravity in the wake of GW1708172018

    • Author(s)
      齊藤 遼
    • Organizer
      Essential Next Steps for Gravity and Cosmology
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Effective theories for the partial breaking of the Vainshtein mechanism2017

    • Author(s)
      齊藤 遼
    • Organizer
      The 27th Workshop on General Relativity and Gravitation in Japan
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Breaking of the Vainshtein mechanism through derivative coupling to matter2017

    • Author(s)
      齊藤 遼
    • Organizer
      日本物理学会2017年秋季大会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Horndeski/beyond Horndeski理論 における第五の力の働きについて2017

    • Author(s)
      齊藤 遼
    • Organizer
      相対論・宇宙論 東北研究会
    • Data Source
      KAKENHI-PROJECT-17K14286
  • [Presentation] Preferred frame effects in higher-order scalar-tensor theories2017

    • Author(s)
      齊藤 遼
    • Organizer
      The 21st annual International Conference on Particle Physics and Cosmology
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14286
  • 1.  Naruko Atsushi (80749507)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 2 results
  • 2.  山内 大介 (10624645)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 2 results
  • 3.  山崎 雅人 (00726599)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 4.  白井 智 (10784499)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 5.  野村 泰紀 (40647616)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 6.  難波 亮 (70722221)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 7.  小幡 一平
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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