Updated on 2024/07/28

Information

 

写真a

 
OKOCHI YUTAKA
 
Organization
Faculty of Arts and Science Division for Theoretical Natural Science Professor
Research Center for Advanced Particle Physics (Joint Appointment)
School of Interdisciplinary Science and Innovation Department of Interdisciplinary Science and Innovation(Joint Appointment)
Graduate School of Sciences Department of Physics(Joint Appointment)
Title
Professor
Profile
My primary research interests are in the study of 4 dimensional supersymmetric gauge theories, including their work via string theories. In particular, I am interested in gauge/gravity duality with N=1 supersymmetry and its application to problems in particle physics. Exploiting recent theoretical progress in this direction, I would like to tackle realistic physics such as phenomenologically viable model building with a UV completion of string theory and deep understanding of confinement in QCD.
External link

Degree

  • Ph.D, Tokyo Institute of Technology, 2005, N=1 Supersymmetric Gauge Theories with Classical Groups, Geometric Transition and Matrix Models

Research History

  • 2023年4月ー現在 九州大学 基幹教育院/共創学部/理学府 教授 2013年7月ー2023年3月 九州大学 基幹教育院/理学府 准教授  2012年4月ー2013年6月 京都大学 白眉プロジェクト 特定准教授/ 理学部併任准教授  2010年8月ー2012年3月 東京大学 数物連携宇宙研究機構(Kavli IPMU)5-year Postdoctral Fellow 2008年9月ー2010年7月 Perimeter Institute for Theoretical Physics, Canada, Postdoctoral Fellow 2006年4月ー2008年8月 California Institute of Technology, USA, Postdoctoral Fellow 2005年4月ー2006年3月 東京大学 理学研究科 学術振興会特別研究員PD

Research Interests・Research Keywords

  • Research theme:Supersymmetric Field Theories and Superstring Theories

    Keyword:Particle physics, the early universe, string theory

    Research period: 2000.4 - 2020.3

Awards

  • 手島研究記念研究賞 (博士論文賞:Supersymmetric Gauge Theories with Classical Groups, Geometric Transition and Matrix Model)

    2005.2   東京工業大学  

Papers

  • Decay of Kaluza-Klein Vacuum via Singular Instanton Reviewed International journal

    Yutaka Ookouchi, #Ryota Sato, #Sohei Tsukahara

    2024.5

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Catalytic creation of a bubble universe induced by quintessence in five dimensions Reviewed International journal

    #Issei Koga and Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   12 ( 104 )   2021.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1103/PhysRevD.104.126015

  • Instability of Higgs Vacuum via String Cloud Reviewed International journal

    #Issei Koga, @Sachiko Kuroyanagi, Yutaka Ookouchi

    Physics Letter B   800 ( (2020) )   135093   2020.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physletb.2019.135093

  • Catalytic Creation of Baby Bubble Universe with Small Positive Cosmological Constant Reviewed International journal

    #Issei Koga, Yutaka Ookouchi

    Journal of High Energy Physics   10 ( 2019 )   281   2019.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP10(2019)281

  • Dyonic Catalysis in the KPV Vacuum Decay Invited Reviewed International journal

    Yuichiro Nakai (Rutgers U.), Yutaka Ookouchi (Kyushu U.), Norihiro Tanahashi (Kyushu U.)

    Physical Review D - Particles, Fields, Gravitation and Cosmology   100   2019.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 9

  • Phases of N=1 Supersymmetric SO/Sp Gauge Theories via Matrix Model Invited Reviewed International journal

    Changhyun Ahn, Yutaka Ookouchi

    Journal of High Energy Physics   2003 ( 3 )   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Confining Phase Superpotentials for SO/Sp Gauge Theories via Geometric Transition Invited Reviewed International journal

    Hiroyuki Fuji, Yutaka Ookouchi

    Journal of High Energy Physics   2003 ( 2 )   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Comments on Effective Superpotentials via Matrix Models Invited Reviewed International journal

    Hiroyuki Fuji, Yutaka Ookouchi

    Journal of High Energy Physics   2002 ( 12 )   2018.5

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  • N=1 Gauge Theory with Flavor from Fluxes Invited Reviewed International journal

    Yutaka Ookouchi

    Journal of High Energy Physics   2004 ( 1 )   2018.5

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  • Thermal effects on decays of a metastable brane configuration Reviewed International journal

    Yuichiro Nakai, Yutaka Ookouchi

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   762   321 - 326   2016.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physletb.2016.09.050

  • Baryon as impurity for phase transition in string landscape Reviewed International journal

    Aya Kasai, Yuichiro Nakai, Yutaka Ookouchi

    Journal of High Energy Physics   2016 ( 6 )   1 - 19   2016.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP06(2016)029

  • Gravitational correction to fuzzy string in metastable brane configuration Reviewed International journal

    Aya Kasai, Yutaka Ookouchi

    Journal of High Energy Physics   2015 ( 6 )   2015.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP06(2015)098

  • Decay of false vacuum via fuzzy monopole in string theory Reviewed International journal

    Aya Kasai, Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   91 ( 12 )   2015.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevD.91.126002

  • 基幹教育課題協学科目 Reviewed

    古屋謙治, 大河内豊, 島田敬士, 田中 岳, 野瀬健, 山形伸二

    基幹教育紀要 - Bulletin of kikan education   1   63 - 69   2015.3

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    Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)  

    DOI: 10.15017/1495422

  • Radiation of supersymmetric particles from Aharonov-Bohm R-string Reviewed International journal

    Yutaka Ookouchi, Takahiro Yonemoto

    Journal of High Energy Physics   2015 ( 2 )   1 - 22   2015.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP02(2015)164

  • Discrete gauge symmetry and Aharonov-Bohm radiation in string theory Reviewed International journal

    Yutaka Ookouchi

    Journal of High Energy Physics   2014 ( 1 )   2014.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP01(2014)049

  • More on cosmological constraints on spontaneous R-symmetry breaking models Reviewed International journal

    Yuta Hamada, Kohei Kamada, Tatsuo Kobayashi, Yutaka Ookouchi

    Journal of Cosmology and Astroparticle Physics   2014 ( 1 )   2014.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1475-7516/2014/01/024

  • Instability of colliding metastable strings Reviewed International journal

    Takashi Hiramatsu, Minoru Eto, Kohei Kamada, Tatsuo Kobayashi, Yutaka Ookouchi

    Journal of High Energy Physics   2014 ( 1 )   2014.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP01(2014)165

  • Cosmic R-string in thermal history Reviewed International journal

    Kohei Kamada, Tatsuo Kobayashi, Keisuke Ohashi, Yutaka Ookouchi

    Journal of High Energy Physics   2013 ( 5 )   2013.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP05(2013)091

  • Cosmic R-string, R-tube and vacuum instability Reviewed International journal

    Minoru Eto, Yuta Hamada, Kohei Kamada, Tatsuo Kobayashi, Keisuke Ohashi, Yutaka Ookouchi

    Journal of High Energy Physics   2013 ( 3 )   2013.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP03(2013)159

  • Cosmological constraints on spontaneous R-symmetry breaking models Reviewed International journal

    Yuta Hamada, Kohei Kamada, Tatsuo Kobayashi, Yutaka Ookouchi

    Journal of Cosmology and Astroparticle Physics   2013 ( 4 )   2013.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1475-7516/2013/04/043

  • Brane realization of Nambu monopoles and electroweak strings Reviewed International journal

    Minoru Eto, Kenichi Konishi, Muneto Nitta, Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   87 ( 4 )   2013.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevD.87.045006

  • Light gaugino problem in direct gauge mediation Reviewed International journal

    Yutaka Ookouchi

    International Journal of Modern Physics A   26 ( 24 )   4153 - 4170   2011.9

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1142/S0217751X11054565

  • Constraints on direct gauge mediation models with complex representations Reviewed International journal

    Kentaro Hanaki, Masahiro Ibe, Yutaka Ookouchi, Chang Soon Park

    Journal of High Energy Physics   2011 ( 8 )   2011.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP08(2011)044

  • Light gauginos and conformal sequestering Reviewed International journal

    Kentaro Hanaki, Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   83 ( 12 )   2011.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevD.83.125010

  • Comments on gaugino mass and landscape of vacua Reviewed International journal

    Yuichiro Nakai, Yutaka Ookouchi

    Journal of High Energy Physics   2011 ( 1 )   2011.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/JHEP01(2011)093

  • Supersymmetry breaking and gauge mediation Invited Reviewed International journal

    Ryuichiro Kitano, Hirosi Ooguri, Yutaka Ookouchi

    Annual Review of Nuclear and Particle Science   60   491 - 511   2010.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1146/annurev.nucl.012809.104540

  • On confinement index Reviewed International journal

    Kenichi Konishi, Yutaka Ookouchi

    Nuclear Physics B   827 ( 1-2 )   59 - 81   2010.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nuclphysb.2009.10.018

  • Supersymmetry breaking and gauge mediation in models with a generic superpotential Reviewed International journal

    Ryuichiro Kitano, Yutaka Ookouchi

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   675 ( 1 )   80 - 83   2009.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physletb.2009.03.057

  • Current correlators for general gauge mediation Reviewed International journal

    Hirosi Ooguri, Yutaka Ookouchi, Chang Soon Park, Jaewon Song

    Nuclear Physics B   808 ( 1-2 )   121 - 136   2009.2

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    DOI: 10.1016/j.nuclphysb.2008.09.017

  • Metastable vacua in perturbed Seiberg-Witten theories. Part 2 Fayet-Iliopoulos terms and Kähler normal coordinates Reviewed International journal

    798 ( 1-2 )   17 - 35   2008.7

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    We show that the perturbation of an N = 2 supersymmetric gauge theory by a superpotential linear in the Kähler normal coordinates of the Coulomb branch, discussed in [H. Ooguri, Y. Ookouchi, C.S. Park, Metastable vacua in perturbed Seiberg-Witten theories, arXiv: 0704.3613 [hep-th]], is equivalent to the perturbation by Fayet-Iliopoulos terms. It follows that the would-be meta-stable vacuum at the origin of the normal coordinates in fact preserves N = 1 supersymmetry unless the superpotential is truncated to a finite-degree polynomial of the adjoint scalar fields. We examine the criteria for supersymmetry breaking under a perturbation by Fayet-Iliopoulos terms and present a general classification of non-supersymmetric critical points. In some explicit examples, we are also able to study local stability of these points and demonstrate that, if the perturbation is chosen appropriately, they indeed correspond to supersymmetry-breaking vacua. Relations of these constructions to flux compactifications and geometric meta-stability are also discussed.

    DOI: 10.1016/j.nuclphysb.2008.01.014

  • Metastable vacua in perturbed Seiberg-Witten theories Reviewed

    Hirosi Ooguri, Yutaka Ookouchi, Chang Soon Park

    Advances in Theoretical and Mathematical Physics   12 ( 2 )   405 - 427   2008.4

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  • Gauge mediation in string theory Reviewed

    Teruhiko Kawano, Hirosi Ooguri, Yutaka Ookouchi

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   652 ( 1 )   40 - 42   2007.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physletb.2007.06.056

  • Direct mediation of metastable supersymmetry breaking Reviewed International journal

    Ryuichiro Kitano, Hirosi Ooguri, Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   75 ( 4 )   2007.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevD.75.045022

  • Landscape of supersymmetry breaking vacua in geometrically realized gauge theories Reviewed International journal

    Hirosi Ooguri, Yutaka Ookouchi

    Nuclear Physics B   755 ( 1-3 )   239 - 253   2006.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nuclphysb.2006.08.009

  • Meta-stable supersymmetry breaking vacua on intersecting branes Reviewed International journal

    Hirosi Ooguri, Yutaka Ookouchi

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   641 ( 3-4 )   323 - 328   2006.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physletb.2006.08.035

  • Pouliot type duality via a-maximization Reviewed International journal

    Teruhiko Kawano, Yutaka Ookouchi, Yuji Tachikawa, Futoshi Yagi

    Nuclear Physics B   735 ( 1-3 )   1 - 16   2006.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nuclphysb.2005.11.024

  • Higgsing and superpotential deformations of A D E superconformal theories Reviewed International journal

    Takuya Okuda, Yutaka Ookouchi

    Nuclear Physics B   733 ( 1-2 )   59 - 90   2006.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nuclphysb.2005.10.038

  • Supersymmetric Gauge Theories with Classical Groups, Geometric Transition and Matrix Model Reviewed

    Yutaka Ookouchi

    2005.3

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  • Supersymmetric Gauge Theories with Flavors and Matrix Models Reviewed International journal

    Changhyun Ahn, Bo Feng, Yutaka Ookouchi, Masaki Shigemori

    Nuclear Physics B   698 ( 1-2 )   3 - 52   2004.10

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  • The Matrix Model Curve Near the Singularities Reviewed International journal

    Changhyun Ahn, Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   69   2004.4

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  • More on N=1 Matrix Model Curve for Arbitrary N Reviewed International journal

    Changhyun Ahn, Yutaka Ookouchi

    Journal of High Energy Physics   2004 ( 2 )   2004.2

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  • Phases of N=1 USp Gauge Theories with Flavors via Matrix Model Reviewed International journal

    Changhyun Ahn, Bo Feng, Yutaka Ookouchi

    Physical Review D - Particles, Fields, Gravitation and Cosmology   69   2004.1

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  • Phases of N=1 SO Gauge Theories with Flavors via Matrix Model Reviewed International journal

    Changhyun Ahn, Bo Feng, Yutaka Ookouchi

    Nuclear Physics B   675   3 - 69   2003.12

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  • Effective Superpotentials for SO/Sp with Flavor from Matrix Models Reviewed International journal

    Yutaka Ookouchi, Yoshiyuki Watabiki

    Modern Physics Letter A   18   1113 - 1126   2003.5

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  • Decay of false vacua via impurities in string theories Reviewed International journal

    Yuichiro Nakai (Rutgers U.), Yutaka Ookouchi (Kyushu U.), Norihiro Tanahashi (Kyushu U.)

    Proceedings of Science, CORFU2018   2019.8

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Books

  • 素粒子の隠れた世界

    大河内豊( Role: Sole translator)

    丸善出版  2018.9 

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    Responsible for pages:P14-22   Language:Japanese   Book type:General book, introductory book for general audience

  • 別冊数理科学「超対称性の破れ」

    大河内 豊( Role: Sole author)

    2017.1 

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    Language:Japanese   Book type:Scholarly book

Presentations

  • Decay of false vacua via impurities in string theories International conference

    Conference on elementary particles, astrophysics, and cosmology "Miami 2018"  2018.12 

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    Event date: 2019.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • Decay of false vacua via impurities in string theories International conference

    the Corfu Summer Institute 2018 "Schools and Workshops on Elementary Particle Physics and Gravity"  2018.9 

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    Event date: 2018.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacua via Impurities in String Landscape Invited

    2017.12 

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory Invited

    2017.3 

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    Event date: 2017.3

    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  • ストリングランドスケープとマルチバース Invited

    大河内豊

    現在という謎  2016.12 

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    Event date: 2016.12

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:立正大学   Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory International conference

    KEK theory workshop 2015  2015.12 

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    Event date: 2015.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory International conference

    YITP Workshop Field Theory and String Theory(2015)  2015.12 

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    Event date: 2015.12

    Language:English  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory

    2015.9 

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    Event date: 2015.9

    Language:Japanese  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory

    2015.8 

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    Event date: 2015.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory International conference

    2015.7 

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    Event date: 2015.6 - 2015.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Italy  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory Invited

    2015.2 

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    Event date: 2015.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Introduction to Decay of False Vacuum via Fuzzy Monopole in String Theory Invited

    2015.1 

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    Event date: 2015.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Discrete Gauge Symmetry and Aharonov-Bohm Radiation in String Theory International conference

    2014.7 

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    Event date: 2014.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Discrete Gauge Symmetry and Aharonov-Bohm Radiation in String Theory Invited

    2014.1 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Discrete Gauge Symmetry and Aharonov-Bohm Radiation in String Theory Invited

    2013.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory Invited

    2015.6 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory Invited

    2015.6 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory Invited

    2015.12 

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    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  • Dyonic Catalysis in the KPV Vacuum Decay

    2018.9 

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    Event date: 2019.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory International conference

    OIST Asian Winter School  2016.1 

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    Event date: 2016.1

    Language:English  

    Country:Japan  

  • Discrete Gauge Symmetry and Aharonov-Bohm Radiation in String Theory Invited International conference

    KEK String 2015  2015.1 

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    Event date: 2015.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Discrete Gauge Symmetry and Aharonov-Bohm Radiation in String Theory

    2014.9 

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    Event date: 2014.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Decay of False Vacuum via Fuzzy Monopole in String Theory

    2015.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

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MISC

  • 基幹教育「課題協学科目」

    古屋 謙治, 大河内 豊, 島田 敬士, 田中 岳, 野瀬 健, 山形 伸二

    基幹教育院紀要 第1巻 pp. 63-69, 2015   2015.3

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Decay of false vacua via impurities in string theories

    Yuichiro Nakai (Rutgers U.), Yutaka Ookouchi (Kyushu U.), Norihiro Tanahashi (Kyushu U.)

    "Schools and Workshops on Elementary Particle Physics and Gravity" in the Proceedings of Science, CORFU2018.   2019.5

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • Higgsing And Superpotential Deformations Of ADE Superconformal Theories (Fundamental Problems And Applications Of Quantum Field Theory) (2006)

    @奥田拓也, 大河内豊

    素粒子論研究 113(1), A43, 2006-04-20   2006.4

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Higgsing And Superpotential Deformations Of ADE Superconformal Theories (2006)

    @奥田拓也, 大河内豊

    素粒子論研究 112(4), D65, 2006-01-20   2006.1

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Review of Dijkgraaf-Vafa Conjecture and Recent Progress (場の量子論2003)

    大河内豊

    素粒子論研究 108(3) C5-C9, 2003-12-20   2003.12

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Comments On Effective Superpotentials Via Matrix Models (Developments Of Superstring Theory YITP Workshop) (2003)

    @藤博之, 大河内豊

    素粒子論研究 107(6),F61-F68, 2003-09-20   2003.9

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Comments On Effective Superpotentials Via Matrix Models (quantum Field Theories: Fundamental Problems And Applications) (2003)

    @藤博之, 大河内豊

    素粒子論研究 107(5), E60, 2003-08-20   2003.8

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Confining Phase Superpotentials for Gauge Theories via Geometric Transition

    2002.12

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

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Professional Memberships

  • 日本物理学会

Committee Memberships

  • Steering committee member   Domestic

    2021.9 - 2022.9   

  • Steering committee member   Domestic

    2021.4 - 2023.3   

  • Steering committee member   Domestic

    2021.4 - 2023.3   

  • 日本物理学会 学会若手奨励賞   学会若手奨励賞 選考委員   Domestic

    2021.4 - 2023.3   

  • 京都大学 基礎物理学研究所   共同利用運営委員会   Domestic

    2021.4 - 2023.3   

  • Steering committee member   Domestic

    2020.10 - 2021.9   

  • 素粒子論グループ事務局   新規登録担当   Domestic

    2020.10 - 2021.9   

  • Steering committee member   Domestic

    2020.9 - 2021.8   

  • 大学教育研究会委員会 庶務   庶務   Domestic

    2020.9 - 2021.8   

  • Steering committee member   Domestic

    2020.4 - 2021.3   

  • 日本物理学会 九州支部   支部委員   Domestic

    2020.4 - 2021.3   

  • Steering committee member   Domestic

    2019.9 - 2020.8   

  • 大学教育研究会委員会 会計   会計   Domestic

    2019.9 - 2020.8   

  • Steering committee member   Domestic

    2018.4 - 2019.3   

  • Steering committee member   Domestic

    2018.3   

  • Steering committee member   Domestic

    2015.4 - 2016.3   

  • 日本物理学会九州支部   九州支部委員   Domestic

    2015.4 - 2016.3   

  • 素粒子論グループ   素粒子論委員   Domestic

    2014.4 - 2016.3   

▼display all

Academic Activities

  • 世話人

    日本物理学会 九州支部例会  ( オンライン ) 2020.12

     More details

    Type:Competition, symposium, etc. 

  • 主催者

    日本物理学会 第74回年次大会  ( 九州大学 伊都キャンパス ) 2019.3

     More details

    Type:Competition, symposium, etc. 

  • 世話人 International contribution

    ( 京都大学 基礎物理学研究所 ) 2018.7 - 2018.8

     More details

    Type:Competition, symposium, etc. 

  • 世話人(責任者) International contribution

    ( 京都大学 基礎物理学研究所 ) 2017.8

     More details

    Type:Competition, symposium, etc. 

  • オーガナイザー

    日本物理学会 九州支部例会  ( 九州工業大学 ) 2015.12

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    Type:Competition, symposium, etc. 

  • オーガナイザー International contribution

    ( 京都大学 基礎物理学研究所 ) 2015.11

     More details

    Type:Competition, symposium, etc. 

  • オーガナイザー International contribution

    国際研究会 Beyond the Standard Model 2014  ( 高エネルギー加速器研究機構 (KEK) ) 2014.3

     More details

    Type:Competition, symposium, etc. 

  • オーガナイザー

    基研研究会 素粒子物理学の進展2013  ( 京都大学 基礎物理学研究所 ) 2013.8

     More details

    Type:Competition, symposium, etc. 

▼display all

Research Projects

  • 弦理論における触媒効果を用いた標準宇宙理論の構築

    2024.4 - 2028.3

    日本 

      More details

    Authorship:Principal investigator 

  • 真空間遷移における触媒効果による宇宙項問題の解決

    2020.4 - 2024.3

      More details

    Authorship:Principal investigator 

    現在,我々の宇宙は加速膨張していることが観測により明らかとなっている.標準宇宙理論において,その膨張を引き起こすのは宇宙項であるが,重力理論の基本スケールと比較して,10-120程度も小さいことがわかっている.この大きな桁数の違いを自然に説明する理論を構築することは,現代物理学におけるひとつの大きな課題となっている.本研究では,この宇宙項問題を弦理論(或いは高次元理論)における真空間の遷移における触媒効果を用いることで,定数の微調整を行うことなく解決する.特に,4次元宇宙における放射と物質を実現するために導入する高次元の構成物が触媒となり,小さな宇宙定数を説明するメカニズムを確立する.

  • 真空間遷移における触媒効果による宇宙項問題の解決

    Grant number:20K03932  2020 - 2023

    日本学術振興会  科学研究費助成事業  基盤研究(C)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 初期宇宙における準安定状態とその崩壊に関する研究

    2019

    QRプログラム わかばチャレンジ

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    Authorship:Principal investigator  Grant type:On-campus funds, funds, etc.

  • 超弦理論から創発される一般化された超重力理論におけるD-ブレインとブラックホール

    2018.4 - 2022.3

    京都大学 

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    Authorship:Coinvestigator(s) 

  • 超弦理論から創発される一般化された超重力理論におけるD-ブレインとブラックホール

    Grant number:18H01214  2018 - 2021

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 準安定なヒッグス真空の崩壊と触媒効果 International coauthorship

    2017.4 - 2020.3

      More details

    Authorship:Principal investigator 

    ヒッグス粒子の発見とトップクォーク質量の精密測定により、標準模型における自然界を記述する真空(ヒッグス真空と呼ぶ)は準安定状態である可能性が強まってきた。準安定状態であるならば、真空は有限の時間で崩壊する。私の研究目的は「不純物による相転移の触媒効果」のアイディアをこのヒッグス真空の相転移に応用し、宇宙観測の結果と突き合わせ、標準模型に対する制限を与えることである。

  • 準安定なヒッグス真空の崩壊と触媒効果

    Grant number:17K05419  2017 - 2019

    日本学術振興会  科学研究費助成事業  基盤研究(C)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 現代物理学における時間論の哲学的解釈

    2015 - 2016

    QRプログラム つばさプロジェクト

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    Authorship:Coinvestigator(s)  Grant type:On-campus funds, funds, etc.

  • ニュートリノで探る素粒子の起源と宇宙の構造

    2013.6 - 2018.3

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    Authorship:Coinvestigator(s) 

  • 真空の安定性と軽い粒子からの弦理論への制限

    2013.4 - 2017.3

      More details

    Authorship:Principal investigator 

    近年、超弦理論の真空は一つではなく、複雑なポテンシャル(ランドスケープ)によりいくつも存在するのではないかと考えられている。この仮定を信じるならば、どの真空が選ばれやすいかを考えることは一つの重要な研究課題となる。私の研究目的は、ポテンシャルが複雑な構造をしているときには、ソリトンの存在が真空のセレクションに重要な役割を果たし、且つそこから放出される軽い粒子が理論に強力な制限を与える事を示すことである。

  • ニュートリノで探る素粒子の起源と宇宙の構造

    Grant number:50543451  2013 - 2017

    日本学術振興会・文部科学省  科学研究費助成事業  新学術領域研究

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 真空の安定性と軽い粒子からの弦理論への制限

    Grant number:40599990  2013 - 2016

    科学研究費助成事業  若手研究(B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • テラスケール物理から超弦理論への展開

    2011.4 - 2015.3

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid) 

  • テラスケール物理から超弦理論への展開

    Grant number:23104010  2011 - 2015

    日本学術振興会・文部科学省  科学研究費助成事業  新学術領域研究

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)  Grant type:Scientific research funding

▼display all

Class subject

  • テクニカルプレゼンテーション

    2024.10 - 2025.3   Second semester

  • 課題協学科目

    2024.10 - 2025.3   Second semester

  • 自然科学の基礎

    2024.10 - 2024.12   Fall quarter

  • システム科学基礎

    2024.10 - 2024.12   Fall quarter

  • 力学概論

    2024.4 - 2024.9   First semester

  • 共創基礎プロジェクト

    2024.4 - 2024.6   Spring quarter

  • 共創の数学

    2023.12 - 2024.2   Winter quarter

  • 自然科学の基礎

    2023.10 - 2023.12   Fall quarter

  • システム科学基礎

    2023.10 - 2023.12   Fall quarter

  • 基幹教育セミナー

    2023.6 - 2023.8   Summer quarter

  • 力学概論

    2023.4 - 2023.9   First semester

  • テクニカルプレゼンテーション

    2022.12 - 2023.2   Winter quarter

  • 課題協学科目

    2022.10 - 2023.3   Second semester

  • 基幹教育セミナー

    2022.6 - 2022.8   Summer quarter

  • 力学概論

    2022.4 - 2022.9   First semester

  • 力学概論演習

    2022.4 - 2022.9   First semester

  • 課題協学科目

    2021.10 - 2022.3   Second semester

  • 課題協学科目

    2021.10 - 2022.3   Second semester

  • 基幹教育セミナー

    2021.6 - 2021.8   Summer quarter

  • 力学概論

    2021.4 - 2021.9   First semester

  • 力学概論演習

    2021.4 - 2021.9   First semester

  • テクニカルプレゼンテーション

    2020.12 - 2021.2   Winter quarter

  • 基幹教育セミナー

    2020.6 - 2020.8   Summer quarter

  • 物理学概論A

    2020.4 - 2020.9   First semester

  • 物理学概論A演習

    2020.4 - 2020.9   First semester

  • 素粒子物理学

    2019.10 - 2020.3   Second semester

  • 基幹教育セミナー

    2019.6 - 2019.8   Summer quarter

  • 物理学概論A演習

    2019.4 - 2019.9   First semester

  • 物理学概論A

    2019.4 - 2019.9   First semester

  • 課題協学科目

    2018.10 - 2019.3   Second semester

  • テクニカルプレゼンテーション

    2018.10 - 2019.3   Second semester

  • 基幹教育セミナー

    2018.6 - 2018.8   Summer quarter

  • 物理学概論A演習

    2018.4 - 2018.9   First semester

  • 課題協学科目

    2017.10 - 2018.3   Second semester

  • テクニカルプレゼンテーション

    2017.10 - 2018.3   Second semester

  • 物理学概論A演習

    2017.4 - 2017.9   First semester

  • 基幹物理学II

    2017.4 - 2017.9   First semester

  • 基幹教育セミナー

    2017.4 - 2017.9   First semester

  • 課題協学科目

    2016.10 - 2017.3   Second semester

  • 素粒子理論

    2016.10 - 2017.3   Second semester

  • テクニカル・プレゼンテーション

    2016.10 - 2017.3   Second semester

  • 基幹物理学II

    2016.4 - 2016.9   First semester

  • 課題協学科目

    2016.4 - 2016.9   First semester

  • 基幹教育セミナー

    2016.4 - 2016.9   First semester

  • 物理学概論演習A

    2016.4 - 2016.9   First semester

  • 課題協学科目

    2015.10 - 2016.3   Second semester

  • 素粒子理論

    2015.10 - 2016.3   Second semester

  • 基幹物理学II

    2015.4 - 2015.9   First semester

  • 基幹教育セミナー

    2015.4 - 2015.9   First semester

  • 物理学概論演習A

    2015.4 - 2015.9   First semester

  • 課題協学科目

    2015.4 - 2015.9   First semester

  • 課題協学科目

    2014.10 - 2015.3   Second semester

  • 基幹教育セミナー

    2014.4 - 2014.9   First semester

  • 物理学概論演習A

    2014.4 - 2014.9   First semester

  • 課題協学科目

    2014.4 - 2014.9   First semester

▼display all

FD Participation

  • 2024.3   Role:Speech   Title:基幹教育春季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2023.9   Role:Participation   Title:基幹教育夏季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2023.3   Role:Participation   Title:基幹教育春季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2022.5   Role:Planning   Title:基幹教育セミナーFD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2022.3   Role:Participation   Title:基幹教育春季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2021.3   Role:Speech   Title:基幹教育FD「オンライン授業におけるアクティブラーニングの科目の実施状況:アクティブラーニングの今後を考える」について

    Organizer:University-wide

  • 2021.3   Role:Participation   Title:FD講演会「九州大学オンライン授業のグッドプラクティス 〜 オンデマンド型授業編〜」

    Organizer:University-wide

  • 2021.3   Role:Participation   Title:FD講演会「九州大学オンライン授業のグッドプラクティス 〜 リアルタイム型授業編〜」

    Organizer:University-wide

  • 2021.3   Role:Speech   Title:基幹教育春季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2020.9   Role:Speech   Title:基幹教育夏季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2020.6   Role:Speech   Title:基幹教育セミナーFD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2020.3   Role:Participation   Title:基幹教育春季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2019.9   Role:Speech   Title:基幹教育夏季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2019.4   Role:Participation   Title:基幹教育ガイダンス事前研修会(FD)

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2019.4   Role:Planning   Title:基幹教育セミナーFD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2019.3   Role:Participation   Title:基幹教育の改革・改善・定着に向けた検討会

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.12   Role:Speech   Title:平成30年度理学研究院物理学科部門FD 「活気のある授業に向けたグループワーク・アクティブラーニング」

    Organizer:Undergraduate school department

  • 2018.8   Role:Participation   Title:基幹教育夏季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.4   Role:Participation   Title:課題協学科目FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.4   Role:Planning   Title:基幹教育セミナーFD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.4   Role:Participation   Title:基幹教育ガイダンス事前研修会(FD)

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.3   Role:Participation   Title:基幹教育の改革・改善・定着に向けた検討会

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2017.12   Role:Participation   Title:全学FD「大学生の学習時間はなぜ短いのか」

    Organizer:University-wide

  • 2017.10   Role:Planning   Title:基幹物理学FD

    Organizer:University-wide

  • 2017.9   Role:Participation   Title:基幹教育夏季FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2017.8   Role:Planning   Title:高校・大学教員向けワークショップ「学部混合・全学一斉展開型科目開発のためのワークショップ」

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2017.4   Role:Participation   Title:課題協学科目FD

    Organizer:University-wide

  • 2017.3   Role:Participation   Title:基幹教育の改革・改善・定着に向けた検討会

    Organizer:University-wide

  • 2017.3   Role:Participation   Title:基幹教育ガイダンス事前研修会(FD)

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2017.1   Role:Planning   Title:高校・大学教員向けワークショップ「文理融合型科目開発のための公開授業・ワークショップ」

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2016.3   Role:Participation   Title:基幹教育セミナー FD

    Organizer:University-wide

  • 2016.3   Role:Participation   Title:基幹教育ガイダンス事前研修会(FD)

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2016.3   Role:Participation   Title:基幹教育の改革・改善・定着に向けた検討会

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2016.2   Role:Participation   Title:第2回基幹教育シンポジウム

    Organizer:University-wide

  • 2015.4   Role:Speech   Title:基幹物理学改善に向けたFD

    Organizer:University-wide

  • 2015.3   Role:Participation   Title:基幹教育ガイダンス事前研修会(FD)

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2015.2   Role:Participation   Title:基幹教育の改革・改善・定着に向けた検討会

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2014.9   Role:Planning   Title:課題協学科目 チームリーダーFD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2014.7   Role:Participation   Title:新 GPA 制度実施のためのFD

    Organizer:University-wide

  • 2014.5   Role:Participation   Title:基幹教育キックオフシンポジウム

    Organizer:University-wide

  • 2014.4   Role:Participation   Title:第1回全学FD

    Organizer:University-wide

  • 2014.3   Role:Participation   Title:第1回基幹教育セミナー科目実践FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.12   Role:Participation   Title:課題協学科目 チームリーダーFD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.10   Role:Participation   Title:基幹教育院着任教員FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.9   Role:Participation   Title:課題協学科目実践FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.8   Role:Participation   Title:基幹教育院夏期FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

▼display all

Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2016  北海道大学理学部  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:宇宙物理学特別講義1・2

  • 2016  山形大学理学部  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:特殊講義I

  • 2012  東京工業大学 大学院理工学研究科  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:基礎物理学特別講義第六

Other educational activity and Special note

  • 2017  Special Affairs 

  • 2016  Special Affairs 

Outline of Social Contribution and International Cooperation activities

  • 平成27年度次世代の科学技術を担う人材育成事業
    高校生科学技術講演会 演題「宇宙の歴史と物理法則」 平成27年9月23日

Social Activities

  • 第15回日本物理学会Jr.セッション(2019)/Jr.セッションは中高生による物理的内容を含む理科の研究発表の場を提供し、斬新な発想や柔らかい思考で物理学を探求している姿勢を養うことを目的としている。 レポートを募集し,その中から選抜された学生にポスター発表をしてもらい、大学教員がその審査をおこなった。また、理学部の肥山氏の講演も企画し、最先端の研究に触れる機会の用意した。

    日本物理学会、九州大学  九州大学 伊都キャンパス  2019.3

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Other

    Jr.セッションは高等学校の生徒からレポートを募集し、その中から選抜された生徒に日本物理学会年次大会で発表してもらう。斬新な発想で物理学のテーマを研究する姿勢を培うことや、日頃の活動や研究成果の発表をする機会を提供することを目的とする。

  • 第15回日本物理学会Jr.セッション(2019)の主催

    2018

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    第15回日本物理学会Jr.セッション(2019)の主催

  • 九大アクティブラーニング教室「テクニカルプレゼンテーション」の開催

    2017

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    九大アクティブラーニング教室「テクニカルプレゼンテーション」の開催

Travel Abroad

  • 2019.5

    Staying countory name 1:United States   Staying institution name 1:Miami 2018

  • 2018.9 - 2019.9

    Staying countory name 1:Greece   Staying institution name 1:Corfu Summer Institute 2018,

  • 2018.3

    Staying countory name 1:United States   Staying institution name 1:Rutgers University

  • 2016.9

    Staying countory name 1:Spain   Staying institution name 1:University of Madrid

  • 2015.3

    Staying countory name 1:United States   Staying institution name 1:Harvard University

  • 2013.6

    Staying countory name 1:United States   Staying institution name 1:California Institute of Technology

  • 2012.6

    Staying countory name 1:Italy   Staying institution name 1:University of Pisa

  • 2011.7

    Staying countory name 1:United Kingdom   Staying institution name 1:University of Cambridge

  • 2011.5

    Staying countory name 1:Switzerland   Staying institution name 1:CERN

  • 2009.4

    Staying countory name 1:United Kingdom   Staying institution name 1:Durham University

  • 2008.9 - 2010.8

    Staying countory name 1:Canada   Staying institution name 1:Perimeter Institute for Theoretical Physics

  • 2006.4 - 2008.8

    Staying countory name 1:United States   Staying institution name 1:California Institute of Technology

  • 2005.11

    Staying countory name 1:Korea, Republic of   Staying institution name 1:Korea Institute for Advanced Study

  • 2004.8 - 2005.3

    Staying countory name 1:United States   Staying institution name 1:California Institute of Technology

  • 2004.7 - 2004.8

    Staying countory name 1:United States   Staying institution name 1:Institute for Advanced Study, Princeton University

  • 2004.1

    Staying countory name 1:Spain   Staying institution name 1:Barcelona University

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