Shu Kenji 周健治

… Alternative Names

周健治シュウケンジ

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Researcher Number	70881233
Other IDs	https://orcid.org/0000-0002-1042-7548
Affiliation (Current)	2026: 国立研究開発法人理化学研究所, 創発物性科学研究センター, 研究員
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人理化学研究所, 創発物性科学研究センター, 研究員 2021 – 2022: 東京大学, 大学院工学系研究科(工学部), 助教
Review Section/Research Field	Principal Investigator Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics / Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Keywords	Principal Investigator 分光 / 量子電磁力学 / レーザー / ポジトロニウム / 標準理論 / 精密分光 / 陽電子 / 差動排気 / 光エレクトロニクス / 電気光学変調器 … More / 冷却原子 / オプティクス / 反物質 / 対称性 / 光周波数変調 / レーザー冷却 / 反粒子 Less

Test of fundamental physics by precision spectroscopy of positronium Lyamn series transitionsPrincipal Investigator
- Principal Investigator
  
  周健治
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Institute of Physical and Chemical Research
Development of a pulsed laser with rapid frequency shift in ultraviolet region for realizing laser cooling of positroniumPrincipal Investigator
- Principal Investigator
  
  Shu Kenji
- Project Period (FY)
  2021 – 2022
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
- Research Institution
  The University of Tokyo

All 2024 2022 2021

All Journal Article Presentation

[Journal Article] Development of a laser for chirp cooling of positronium to near the recoil limit using a chirped pulse-train generator2024
- Author(s)
  Shu Kenji、Miyamoto Naoki、Motohashi Yuto、Uozumi Ryosuke、Tajima Yohei、Yoshioka Kosuke
- Journal Title
  
  Physical Review A
  
  Volume: 109 Issue: 4 Pages: 043520-043531
- DOI
  10.1103/physreva.109.043520
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22KJ0637, KAKENHI-PROJECT-24H00217, KAKENHI-PROJECT-24KJ0752, KAKENHI-PROJECT-24K00639
[Journal Article] Cooling positronium to ultralow velocities with a chirped laser pulse train2024
- Author(s)
  Shu K.、Tajima Y.、Uozumi R.、Miyamoto N.、Shiraishi S.、Kobayashi T.、Ishida A.、Yamada K.、Gladen R. W.、Namba T.、Asai S.、Wada K.、Mochizuki I.、Hyodo T.、Ito K.、Michishio K.、O’Rourke B. E.、Oshima N.、Yoshioka K.
- Journal Title
  
  Nature
  
  Volume: 633 Issue: 8031 Pages: 793-797
- DOI
  10.1038/s41586-024-07912-0
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23H05462, KAKENHI-PROJECT-24H00217, KAKENHI-PROJECT-23K21832, KAKENHI-PROJECT-24KJ0752, KAKENHI-PROJECT-24K00639, KAKENHI-PROJECT-24K03206, KAKENHI-PROJECT-23K11711
[Journal Article] Theoretical Analysis and Experimental Demonstration of a Chirped Pulse-Train Generator and its Potential for Efficient Cooling of Positronium2021
- Author(s)
  Yamada K.、Tajima Y.、Murayoshi T.、Fan X.、Ishida A.、Namba T.、Asai S.、Kuwata-Gonokami M.、Chae E.、Shu K.、Yoshioka K.
- Journal Title
  
  Physical Review Applied
  
  Volume: 16 Issue: 1
- DOI
  10.1103/physrevapplied.16.014009
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13862, KAKENHI-PROJECT-22KJ0637
[Presentation] One-dimensional chirp cooling of positronium2024
- Author(s)
  Kenji Shu
- Organizer
  PSAS’2024 - International Conference on Precision Physics of Simple Atomic Systems, Molecular and Optical Physics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24K00639
[Presentation] 第三回冷却分子・精密分光シンポジウム2024
- Author(s)
  周健治
- Organizer
  レーザー冷却による極低温ポジトロニウムの実現と精密測定への展望
- Invited
- Data Source
  KAKENHI-PROJECT-24K00639
[Presentation] Demonstration of one- dimensional chirp cooling of positronium to ultra-low temperatures2024
- Author(s)
  Kenji Shu
- Organizer
  International Conference on Exotic Atoms and Related Topics and conference on Low Energy Antiprotons (EXA/LEAP 2024)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24K00639
[Presentation] 極低温ポジトロニウム原子を用いた基礎物理学実験研究の展望2024
- Author(s)
  周健治
- Organizer
  日本物理学会第79回年次大会（2024年）
- Data Source
  KAKENHI-PROJECT-24K00639
[Presentation] Demonstration of one-dimensional chirp cooling of positronium2024
- Author(s)
  Kenji Shu
- Organizer
  55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24K00639
[Presentation] ポジトロニウム冷却のためのサブマイクロ秒紫外パルスレーザー光源の帯域増強2022
- Author(s)
  周健治、田島陽平、吉岡孝高
- Organizer
  日本物理学会第77回年次大会（2022年）
- Data Source
  KAKENHI-PROJECT-21K13862
[Presentation] ポジトロニウム冷却のためのサブマイクロ秒紫外パルスレーザー光源の帯域増強2022
- Author(s)
  周健治
- Organizer
  日本物理学会第77回年次大会
- Data Source
  KAKENHI-PROJECT-21K13862
[Presentation] ポジトロニウム冷却に最適化したサブマイクロ秒紫外パルスレーザー光源の帯域増強2022
- Author(s)
  周健治
- Organizer
  日本物理学会2022年秋季大会
- Data Source
  KAKENHI-PROJECT-21K13862
[Presentation] Experimental progress in physics of cold positronium2021
- Author(s)
  Kenji Shu, Y. Tajima, T. Kobayashi, R. Uozumi, E. Chae, K. Yoshioka, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami, N. Oshima, B.E. O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada and T. Kai
- Organizer
  Fundamental Physics Using Atoms 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13862

1. 難波俊雄

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
2. 石田明

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Shu Kenji 周 健治

周 健治 シュウ ケンジ

Research Projects

Research Products

Co-Researchers

Test of fundamental physics by precision spectroscopy of positronium Lyamn series transitionsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of a pulsed laser with rapid frequency shift in ultraviolet region for realizing laser cooling of positroniumPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Development of a laser for chirp cooling of positronium to near the recoil limit using a chirped pulse-train generator2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Cooling positronium to ultralow velocities with a chirped laser pulse train2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Theoretical Analysis and Experimental Demonstration of a Chirped Pulse-Train Generator and its Potential for Efficient Cooling of Positronium2021

Author(s)

Journal Title

DOI

Data Source

[Presentation] One-dimensional chirp cooling of positronium2024

Author(s)

Organizer

Data Source

[Presentation] 第三回冷却分子・精密分光シンポジウム2024

Author(s)

Organizer

Data Source

[Presentation] Demonstration of one- dimensional chirp cooling of positronium to ultra-low temperatures2024

Author(s)

Organizer

Data Source

[Presentation] 極低温ポジトロニウム原子を用いた基礎物理学実験研究の展望2024

Author(s)

Organizer

Data Source

[Presentation] Demonstration of one-dimensional chirp cooling of positronium2024

Author(s)

Organizer

Data Source

[Presentation] ポジトロニウム冷却のためのサブマイクロ秒紫外パルスレーザー光源の帯域増強2022

Author(s)

Organizer

Data Source

[Presentation] ポジトロニウム冷却のためのサブマイクロ秒紫外パルスレーザー光源の帯域増強2022

Author(s)

Organizer

Data Source

[Presentation] ポジトロニウム冷却に最適化したサブマイクロ秒紫外パルスレーザー光源の帯域増強2022

Author(s)

Organizer

Data Source

[Presentation] Experimental progress in physics of cold positronium2021

Author(s)

Organizer

Data Source

Shu Kenji 周健治

周健治シュウケンジ