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Unification of the standard model and the Planck scale physics based on constructive formulation of string theory

Research Project

Project/Area Number 16K05322
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKyoto University

Principal Investigator

KAWAI HIkaru  京都大学, 理学研究科, 教授 (80211176)

Project Period (FY) 2016-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords素粒子 / 量子重力 / 弦理論 / 標準模型 / プランクスケール / 行列模型 / 自然性問題 / マルチバース / マルティバース / ブラックホール / Higgsインフレーション / ヒグスインフレーション / 自然性 / 時空のトポロジー / 砂漠 / ヒグスポテンシャル / 最大エントロピー原理 / IIB行列模型 / 時空の創発 / ヒグス場 / インフレーション / 構成的定式化 / プランクスケール物理
Outline of Final Research Achievements

Developments were made on each of the following three topics, which were published as a total of 15 papers. (i) In collaboration with Kawana, Yagyu, Hamada, and Oda, we discussed the possibility of modifying the standard model so that it is consistent up to the Planck scale. (ii) In collaboration with Haruna and Kawana, we extended the resolution of the naturalness problem by multiverse and showed the possibility that the electroweak scale can be obtained non-perturbatively from the Planck scale. (iii) In collaboration with Ho and Yokokura, we investigated the field interaction near the horizon of a black hole and showed that the classical equivalence principle cannot be obtained as a limit of quantum theory. This may be a step toward understanding what the essential difference between classical and quantum gravity is.

Academic Significance and Societal Importance of the Research Achievements

超弦理論に基づいた統一理論の研究がはじまって40年近くが経つが、未だに素粒子物理学の根幹をなす基本理論には至っていない。一方、LHC による Higgs 粒子の発見と、TeV 領域において超対称性等の新現象が存在しないことの発見は、素粒子物理学がこれまでの考え方に捉われない新たな方向性を模索する時代へ入ったことを示している。それとともに標準模型では説明不可能な現象や、標準的な場の理論の考え方では理解できない問題も存在する。現在われわれの手中にある実験結果の意味を深く考察し、場の理論のダイナミクスや量子重力・弦理論とのつながりを再検討することが、次世代の科学を築いていく手掛かりとなる。

Report

(7 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (36 results)

All 2022 2021 2020 2019 2018 2017 2016

All Journal Article (17 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 17 results,  Open Access: 17 results,  Acknowledgement Compliant: 2 results) Presentation (19 results) (of which Int'l Joint Research: 11 results,  Invited: 14 results)

  • [Journal Article] Interior metric of slowly formed black holes in a heat bath2022

    • Author(s)
      Kawai Hikaru、Yokokura Yuki
    • Journal Title

      Physical Review D

      Volume: 105 Issue: 4 Pages: 1-14

    • DOI

      10.1103/physrevd.105.045017

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Planckian physics comes into play at Planckian distance from horizon2022

    • Author(s)
      Ho Pei-Ming、Kawai Hikaru、Yokokura Yuki
    • Journal Title

      Journal of High Energy Physics

      Volume: 2022 Issue: 1 Pages: 1-22

    • DOI

      10.1007/jhep01(2022)019

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Minimal scenario of criticality for electroweak scale, neutrino masses, dark matter, and inflation2021

    • Author(s)
      Hamada Yuta、Kawai Hikaru、Kawana Kiyoharu、Oda Kin-ya、Yagyu Kei
    • Journal Title

      The European Physical Journal C

      Volume: 81 Issue: 11 Pages: 962-979

    • DOI

      10.1140/epjc/s10052-021-09735-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The multicritical point principle as the origin of classical conformality and its generalizations2021

    • Author(s)
      Kawai Hikaru、Kawana Kiyoharu
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2022 Issue: 1 Pages: 1-19

    • DOI

      10.1093/ptep/ptab161

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dark matter in minimal dimensional transmutation with multicritical-point principle2021

    • Author(s)
      Hamada Yuta、Kawai Hikaru、Oda Kin-ya、Yagyu Kei
    • Journal Title

      Journal of High Energy Physics

      Volume: 2021 Issue: 1 Pages: 1-31

    • DOI

      10.1007/jhep01(2021)087

    • NAID

      120006959189

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Black Hole as a Quantum Field Configuration2020

    • Author(s)
      Kawai Hikaru、Yokokura Yuki
    • Journal Title

      Universe

      Volume: 6 Issue: 6 Pages: 1-70

    • DOI

      10.3390/universe6060077

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Large N analysis of $$ T\overline{T} $$-deformation and unavoidable negative-norm states2020

    • Author(s)
      Haruna Junichi、Ishii Takaaki、Kawai Hikaru、Sakai Katsuta、Yoshida Kentaroh
    • Journal Title

      Journal of High Energy Physics

      Volume: 2020 Issue: 4 Pages: 1-18

    • DOI

      10.1007/jhep04(2020)127

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Weak scale from Planck scale: Mass scale generation in a classically conformal two-scalar system2020

    • Author(s)
      Junichi Haruna, Hikaru Kawai
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: Volime 2020, Issue 3 Issue: 3 Pages: 1-41

    • DOI

      10.1093/ptep/ptz165

    • NAID

      120006822570

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cosmological implications of Standard Model criticality and Higgs inflation2020

    • Author(s)
      Yuta Hamada, Hikaru Kawai, Yukari Nakanishi, Kin-ya Oda
    • Journal Title

      Nuclear Physics

      Volume: B953 Pages: 1-31

    • DOI

      10.1016/j.nuclphysb.2020.114946

    • NAID

      120006959182

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Back Reaction of 4D Conformal Fields on Static Geometry2018

    • Author(s)
      Pei-Ming Ho, Hikaru Kawai, Yoshinori Matsuo, Yuki Yokokura
    • Journal Title

      JHEP

      Volume: 1811 Issue: 11 Pages: 056-056

    • DOI

      10.1007/jhep11(2018)056

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Universality of soft theorem from locality of soft vertex operators2018

    • Author(s)
      Sho Higuchi, Hikaru Kawai
    • Journal Title

      Nucl. Phys.

      Volume: B936 Pages: 400-447

    • DOI

      10.1016/j.nuclphysb.2018.09.024

    • NAID

      130007736883

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Axial U(1) current in Grabowska and Kaplan’s formulation2017

    • Author(s)
      Yu Hamada, Hikaru Kawai
    • Journal Title

      PTEP

      Volume: no.6, Issue: 6

    • DOI

      10.1093/ptep/ptx086

    • NAID

      120006591361

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Model of Black Hole Evaporation and 4D Weyl Anomaly2017

    • Author(s)
      Hikaru Kawai, Yuki Yokokura
    • Journal Title

      Universe

      Volume: 3(2) Issue: 2 Pages: 51-51

    • DOI

      10.3390/universe3020051

    • NAID

      120006491914

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A note on graviton exchange in the emergent gravity scenario2017

    • Author(s)
      Hikaru Kawai, Kiyoharu Kawana, Katsuta Sakai
    • Journal Title

      PTEP

      Volume: no.4 Issue: 4

    • DOI

      10.1093/ptep/ptx036

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Massive higher spin fields in curved spacetime and necessity of non-minimal couplings2016

    • Author(s)
      Masafumi Fukuma, Hikaru Kawai, Katsuta Sakai and Junji Yamamoto
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 7 Issue: 7 Pages: 073B02-073B02

    • DOI

      10.1093/ptep/ptw080

    • NAID

      120005848261

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Models of the LHC diphoton excesses valid up to the Planck scale2016

    • Author(s)
      Yuta Hamada, Hikaru Kawai, Kiyoharu Kawana, Koji Tsumura
    • Journal Title

      Phys.Rev. D

      Volume: 94 Issue: 1 Pages: 014007-014007

    • DOI

      10.1103/physrevd.94.014007

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Reinterpretation of the Starobinsky model2016

    • Author(s)
      Takehiko Asaka, Satoshi Iso, Hikaru Kawai, Kazunori Kohri, Toshifumi Noumi, Takahiro Terada.
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: no.12 Issue: 12 Pages: 123E01-123E01

    • DOI

      10.1093/ptep/ptw161

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 2022 Taiwan Winter Interdisciplinary Theory Retreat2022

    • Author(s)
      Hikaru Kawai
    • Organizer
      2022 Taiwan Winter Interdisciplinary Theory Retreat
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Random geometry and naturalness2021

    • Author(s)
      Hikaru Kawai
    • Organizer
      CORFU2021: 21ST HELLENIC SCHOOL AND WORKSHOPS ON ELEMENTARY PARTICLE PHYSICS AND GRAVITY
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Towards Unification of Space-time and Matter - Problems and Prospects of the Matrix Model -2021

    • Author(s)
      Hikaru Kawai
    • Organizer
      Joint Physics Colloquia for NTU/AS/NTNU
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Revisiting trans Planckian problem in Hawking radiation2021

    • Author(s)
      Hikaru Kawai
    • Organizer
      NCTS ANNUAL THEORY MEETING
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Random geometry and naturalness2021

    • Author(s)
      Hikaru Kawai
    • Organizer
      Randomness, Integrability and Representation Theory in Quantum Field Theory 2021
    • Related Report
      2020 Research-status Report
  • [Presentation] Quantum Gravity and Naturalness2020

    • Author(s)
      Hikaru Kawai
    • Organizer
      10th International Conference on Exact Renormalization Group 2020
    • Related Report
      2020 Research-status Report
  • [Presentation] Quantum Gravity and Naturalness2019

    • Author(s)
      Hikaru Kawai
    • Organizer
      Humboldt Kolleg Frontiers in Physics: From the Electroweak to the Planck Scales
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum Gravity and Naturalness2019

    • Author(s)
      Hikaru Kawai
    • Organizer
      KEK Theory Workshop 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Emergence of space-time from matrices2019

    • Author(s)
      Hikaru Kawai
    • Organizer
      Space Time Matrices
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Problems and prospects of the IIB matrix model2018

    • Author(s)
      Hikaru Kawai
    • Organizer
      Matrix Models for Noncommutative Geometry and String Theory
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Multiverse Partition function and Maximum Entropy Principle2018

    • Author(s)
      Hikaru Kawai
    • Organizer
      KEK Theory Workshop 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Universal Non-Perturbative Effect in Quantum Gravity / String Theory2018

    • Author(s)
      Hikaru Kawai
    • Organizer
      Non-Perturbative Methods in Field Theory and String Theory
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Universal Non-Perturbative Effect in Quantum Gravity / String Theory2018

    • Author(s)
      Hikaru Kawai
    • Organizer
      International Symposium in Honor of Professor Nambu for the 10th Anniversary of his Nobel Prize in Physics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Matrix models and quantum space-time2017

    • Author(s)
      Hikaru Kawai
    • Organizer
      Training School “Quantum Spacetime and Physics Models”
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi-local action and Higgs inflation2017

    • Author(s)
      Hikaru Kawai
    • Organizer
      KEK theory workshop 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Emergence of space-time and the naturalness problem in matrix models2017

    • Author(s)
      Hikaru Kawai
    • Organizer
      International Workshop on Noncommutative geometry, Duality and Quantum Gravity
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A model of black hole evaporation and Weyl anomaly2016

    • Author(s)
      Hikaru Kawai
    • Organizer
      KEK theory workshop 2016
    • Place of Presentation
      高エネルギー加速器研究機構(つくば市)
    • Year and Date
      2016-12-06
    • Related Report
      2016 Research-status Report
  • [Presentation] エネルギー運動量テンソルの量子論的構成とブラックホールの内部構造2016

    • Author(s)
      横倉祐貴, 川合光
    • Organizer
      日本物理学会
    • Place of Presentation
      宮崎大学(宮崎市)
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
  • [Presentation] 場の理論におけるcurved spacetime上のmassive higher spin粒子の定式化2016

    • Author(s)
      福間将文, 川合光, 酒井勝太, 山本順二
    • Organizer
      日本物理学会
    • Place of Presentation
      宮崎大学(宮崎市)
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2023-01-30  

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