ISHIDA Akira

イシダアキラ | ISHIDA Akira

Affiliation and department：
Job title： Assistant Professor
Homepage URL (2)： http://www.icepp.s.u-tokyo.ac.jp/%7Eishida/index_j.html , http://www.icepp.s.u-tokyo.ac.jp/%7Eishida/

Research field (3)： Quantum beam science , Semiconductors, optical and atomic physics , Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (5)： bound-state quantum electrodynamics , positron , antimatter , Bose-Einstein condensation , positronium

Research theme for competitive and other funds (12)：

2023 - 2028 スピン偏極陽電子ビームを基軸とする新しいサイエンスの展開
2021 - 2028 Realization of a gamma-ray laser produced from antimatter quantum condensate (JPMJFR202L)
2019 - 2022 Positronium generation, condensation, and cooling to realize Bose-Einstein condensation of antimatter system
2019 - 2021 Development of cooling method of positronium for next-generation gamma-ray laser source
2019 - 2021 Development of "nano reactor" making full-use of nano-processing to realize antimatter Bose-Einstein condensation

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Papers (34)：

K. Shu, Y. Tajima, R. Uozumi, N. Miyamoto, S. Shiraishi, T. Kobayashi, A. Ishida, K. Yamada, R. W. Gladen, T. Namba, et al. Cooling positronium to ultralow velocities with a chirped laser pulse train. Nature. 2024. 633. 8031. 793-797
Hiroyuki HIGAKI, Koji MICHISHIO, Akira ISHIDA, Nagayasu OSHIMA. The Buncher and the Magnetic Lens for the LINAC Based Low Energy Positron Beams at AIST. Plasma and Fusion Research. 2023. 18. 1406023-1406023
Kenji Shu, Kyohei Yamada, Kaori Hashidate, Akira Ishida, Toshio Namba, Shoji Asai, Makoto Kuwata-Gonokami, Yohei Tajima, Eunmi Chae, Kosuke Yoshioka, et al. Development of a porous silica cavity for laser excitation of confined positronium. JJAP Conference Proceedings. 2023. 9. 011202-011202
Koji Michishio, Hiroyuki Higaki, Akira Ishida, Nagayasu Oshima. Efficient positron trapping and extraction with a center-hole SiC remoderator. New Journal of Physics. 2022. 24. 12. 123039-123039
Kenji Shu, Akira Ishida, Toshio Namba, Shoji Asai, Nagayasu Oshima, Brian E. O'Rourke, Kenji Ito. Observation of orthopositronium thermalization in silica aerogel at cryogenic temperatures. Physical Review A. 2021. 104. 5. L050801

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MISC (44)：

K. Shu, Y. Tajima, R. Uozumi, N. Miyamoto, S. Shiraishi, T. Kobayashi, A. Ishida, K. Yamada, R. W. Gladen, T. Namba, et al. Laser cooling of positronium. arXiv. 2023. 2310. 08761. 1-29
石田明, 難波俊雄, 浅井祥仁, 田島陽平, 小林拓豊, 魚住亮介, 周健治, 吉岡孝高, 大島永康, O’ROURKE Brian E., et al. Development of nanomaterials for positronium formation aiming at Bose-Einstein condensation. アイソトープ・放射線研究発表会(Web). 2023. 60th
周健治, 田島陽平, 魚住亮介, 宮本尚樹, 白石蒼馬, 小林拓豊, 山田恭平, GLADEN Randall W., 難波俊雄, 浅井祥仁, et al. Laser cooling of positronium using a chirped train of optical pulses. 日本物理学会講演概要集(CD-ROM). 2023. 78. 2
周健治, 田島陽平, 魚住亮介, 白石蒼馬, 宮本尚樹, 本橋悠人, GLADEN Randall W., 難波俊雄, 石田明, 吉岡孝高. Current status of laser cooling experiment for positronium. 量子ビームサイエンスフェスタ(Web). 2023. 2022
Akira ISHIDA, Kaori HASHIDATE, Toshio NAMBA, Shoji ASAI, Makoto Kuwata-GONOKAMI, Yohei TAJIMA, Takuto KOBAYASHI, Ryosuke UOZUMI, Kenji SHU, Eunmi CHAE, et al. Laser cooling of positronium in vacuum. Photon Factory Activity Report. 2022. 39. 183. 1-6

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Books (1)：

陽電子科学 -基礎から応用までー
Japanese Positron Science Society 2021

Lectures and oral presentations (84)：

Development of nanoporous materials to form dense and cold positronium for Bose-Einstein condensation
(The 13th International Workshop on Positron and Positronium Chemistry (PPC13) 2024)
Development of formation material for dense and cold positronium to realize Bose-Einstein condensation
(JPS 79th Annual Meeting 2024)
Prospects for Positronium Bose-Einstein Condensation
(International Conference on Exotic Atoms and Related Topics and conference on Low Energy Antiprotons (EXA/LEAP 2024) 2024)
Development of nanomaterials for dense and cold positronium formation aiming at Bose-Einstein condensation
(The 61st Annual Meeting on Radioisotopes and Radiation Researches 2024)
Positronium Bose-Einstein Condenstaion (current status of densification and cooling, and future plans)
(JPS 2024 Spring Meeting 2024)

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Education (5)：

2010 - 2012 The University of Tokyo Graduate School of Science Department of Physics (Doctoral Program)
2008 - 2010 The University of Tokyo Graduate School of Science Department of Physics (Master's course)
2006 - 2008 The University of Tokyo Faculty of Science Department of Physics
2004 - 2006 The University of Tokyo College of Arts and Sciences Natural Sciences I
2001 - 2004 Matsuyamahigashi Ehime Prefectual Senior High School General course

Professional career (1)：

Ph.D. in Science (The University of Tokyo)

Work history (3)：

2012/07 - 現在 The University of Tokyo Graduate School of Science Assistant Professor
2013/12 - 2015/11 Japan Society for the Promotion of Science Overseas Research Fellowships
2010/04 - 2012/06 Japan Society for the Promotion of Science Research Fellowship for Young Scientists (DC1)

Committee career (8)：

2024/01 - 現在 XXII International Workshop on Low-Energy Positron and Positronium Physics and XXIV International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2025) Local Organizing Committee
2019/09 - 現在日本陽電子科学会会報刊行委員
2022/10 - 2024/11 The 13th International Workshop on Positron and Positronium Chemistry (PPC13) Local Organizing Committee
2022/10 - 2024/03 The Physical Society of Japan 領域運営委員 (Division 10, X-ray and Particle Beams)
2022/04 - 2023/03 PF User Association (PF-UA) Executive Committee Member in charge of Editing and Publicity

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Awards (2)：

2017/12 - Japanese Positron Science Society Young Scientist Award of the Japanese Positron Science Society New precise measurement of the hyperfine splitting of positronium
2012/07 - 公益財団法人日本アイソトープ協会第49回アイソトープ・放射線研究発表会「若手優秀講演賞」ポジトロニウム超微細構造の精密測定

Association Membership(s) (3)：

Japan Association of High Energy Physicists (JAHEP) , JAPANESE POSITRON SCIENCE SOCIETY , THE PHYSICAL SOCIETY OF JAPAN

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