Updated on 2024/11/26

写真a

 
MATSUI JUN
 
Organization
Faculty of Science Department of Physics Lecturer
School of Sciences Department of Physics（Concurrent）
Graduate School of Sciences Department of Physics（Concurrent）
Title
Lecturer
Contact information
メールアドレス
Tel
0928024069
Profile
Molecular-Dynamics study of the glass transition, Statistical mechanics of lattice gases
Homepage
External link

Degree

  • PhD

Research Interests・Research Keywords

  • Research theme： Computing method of complex permittivity

    Keyword： complex permittivity, molecular dynamics

    Research period： 2021.3 - 2023.6

  • Research theme： Relativity Simulator

    Keyword： Relativity

    Research period： 2005.6 - 2014.4

  • Research theme： Glass transition

    Keyword： Glass Transition

    Research period： 1995.4

Papers

  • Neutron-skin values and matter and neutron radii determined from reaction cross sections of proton scattering on 12C, 40,48Ca, 58Ni, and 208Pb

    Wakasa, T; Tagami, S; Matsui, J; Takechi, M; Yahiro, M

    PHYSICAL REVIEW C   107 ( 2 )   2023.2   （ ISSN:2469-9985 eISSN:2469-9993 ）

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    Publisher：Physical Review C  

    Background: Very recently, the PREX and CREX collaborations presented skin values rskin208(newPREX2)=0.278±0.078(exp)±0.012(theor.)fm and rskin48=0.121±0.026(exp)±0.024(model), respectively. We recently determined a neutron-skin value rskin208=0.278±0.035fm from measured reaction cross sections σR(exp) of p+Pb208 scattering in a range of incident energies 10≲Ein≲100 MeV where the chiral (Kyushu) g-matrix folding model is reliable for C12+C12 scattering. The data σR(exp) are available for proton scattering on Ni58, Ca40,48, and C12 targets.Purpose: Our first aim is to test the Kyushu g-matrix folding model for p+Pb208 scattering in 20≲Ein≲180 MeV. Our second aim is to determine skin values rskin and matter and neutron radii, rm and rn, for Pb208, Ni58, Ca40,48, and C12 from the σR(exp). Methods: Our method is the Kyushu g-matrix folding model with the densities scaled from the D1S-GHFB+AMP densities, where D1S-GHFB+AMP stands for Gogny-D1S HFB (GHFB) with angular momentum projection (AMP). Results: As for proton scattering, we find that our model is reliable in 20≲Ein≲180 MeV. For Pb208, the skin value deduced from σR(exp) in 20≲Ein≲180 MeV is rskin208(σR)=0.299±0.020 fm. Our results on rskin are compared with the previous works. Conclusion: Our result rskin208(σR)=0.299±0.020 fm agrees with rskin208(PREX2)=0.283±0.071 fm. In addition, our result rskin48=0.103±0.022 fm is consistent with the CREX value.

    DOI： 10.1103/PhysRevC.107.024608

    Web of Science

    Scopus

  • Theoretical estimation of dielectric loss of oxide glasses using nonequilibrium molecular dynamics simulations

    Urata, S; Hijiya, H; Niwano, K; Matsui, J

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   105 ( 6 )   4200 - 4207   2022.6   （ ISSN:0002-7820 eISSN:1551-2916 ）

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    Publisher：Journal of the American Ceramic Society  

    To theoretically explore amorphous materials with a sufficiently low dielectric loss, which are essential for next-generation communication devices, the applicability of a nonequilibrium molecular dynamics simulation employing an external alternating electric field was examined using alkaline silicate glass models. In this method, the dielectric loss is directly evaluated as the phase shift of the dipole moment from the applied electric field. This method enabled us to evaluate the dielectric loss in a wide frequency range from 1 GHz to 10 THz. It was observed that the dielectric loss reaches its maximum at a few THz. The simulation method was found to qualitatively reproduce the effects of alkaline content and alkaline type on the dielectric loss. Furthermore, it reasonably reproduced the effect of mixed alkalines on the dielectric loss, which was observed in our experiments on sodium and/or potassium silicate glasses. Alkaline mixing was thus found to reduce the dielectric loss.

    DOI： 10.1111/jace.18411

    Web of Science

    Scopus

  • Theoretical estimation of dielectric loss of oxide glasses using non-equilibrium molecular dynamics simulations Reviewed International journal

    @Shingo Urata, @Hiroyuki Hijiya, @Kazuhiko Niwano, @Jun Matsui

    Journal of the American Ceramic Society   105 ( 2 )   4200 - 4207   2022.2

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

    DOI： https://doi.org/10.1111/jace.18411

  • Folding-model approach to reaction cross section of <SUP>4,6,8</SUP>He+<SUP>12</SUP>C scattering at 790 MeV

    Tagami, S; Wakasa, T; Takechi, M; Matsui, J; Yahiro, M

    RESULTS IN PHYSICS   33   2022.2   （ ISSN:2211-3797 ）

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    Publisher：Results in Physics  

    Tanihata et al. (1988) determined matter radii rm(σI) for 4,6,8He from interaction cross sections σI of 4,6,8He+12C scattering at 790 MeV per nucleon, using the optical limit of the Glauber model. Lu et al. (2013) determined proton radii rp(AIS) for 4,6,8He with the atomic isotope shifts (AIS). We investigate whether the Love-Franey t-matrix folding model is good for 4,6,8He+12C scattering at 790 MeV per nucleon.

    DOI： 10.1016/j.rinp.2021.105132

    Web of Science

    Scopus

  • Neutron skin in <SUP>48</SUP>Ca determined from p+<SUP>48</SUP>Ca and <SUP>48</SUP>Ca+<SUP>12</SUP>C scattering

    Tagami, S; Wakasa, T; Takechi, M; Matsui, J; Yahiro, M

    RESULTS IN PHYSICS   33   2022.2   （ ISSN:2211-3797 ）

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    Publisher：Results in Physics  

    Background: In our previous paper, we determined rskin208(exp)=0.278±0.035 fm from measured reaction cross sections σR for p+208Pb scattering, using the Kyushu (chiral) g-matrix folding model with the densities calculated with the Gogny-D1S Hartree–Fock–Bogoliubov (D1S-GHFB) with the angular momentum projection (AMP). The value agrees with that of PREX2. Reaction cross sections σR are available for p+48Ca scattering, whereas interaction cross sections σI(≈σR) are available for 48Ca + 12C scattering. As for 48Ca, the high-resolution E1 polarizability experiment (E1pE) yields rskin48(E1pE)=0.14∼0.20fm. Purpose: We determine rskin48(exp) from the data on σR for p+48Ca scattering and from the data on σI for 48Ca+12C scattering. Methods: We use the Kyushu g-matrix folding model with the densities calculated with the D1M-GHFB+AMP densities. The D1M-GHFB+AMP proton and neutron densities are scaled so as to reproduce the data under the condition that the radius rp of the scaled proton density equals the data rp(exp) determined from the electron scattering. We deduce skin values rskin=rn(exp)−rp(exp) from the resulting rn(exp) and the rp(exp) determined from electron scattering. The same procedure is taken for D1S-GHFB+AMP. Results: We regard rskin48(E1pE) as a reference skin value. Using the reference skin value and taking D1M-GHFB+AMP, we determine rskin48(exp)=0.158±0.025 fm for p+48Ca scattering and 0.160±0.058 fm for 48Ca + 12C scattering. Conclusion: We take the weighted mean and its error for the two skin values. The result is rskin48(exp)=0.158±(0.023)exp±(0.012)thfm.

    DOI： 10.1016/j.rinp.2021.105155

    Web of Science

    Scopus

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Presentations

  • 環状分子の固液転移

    上戸美乃, 松井淳

    日本物理学会九州支部例会  2019.12 

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    Event date： 2019.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  • 環状分子の固液転移

    上戸美乃, 松井淳

    日本物理学会2019年秋季大会  2019.9 

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    Event date： 2019.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  • 環状分子の固液転移

    上戸美乃, 松井淳

    日本物理学会第74回年次大会  2019.3 

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    Event date： 2019.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  • ガラス転移近傍におけるジャンプ拡散の待ち時間分布 －長時間テイルの解析－

    松井 淳

    日本物理学会2018年秋季大会  2018.9 

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    Event date： 2018.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：同志社大学田辺キャンパス   Country：Japan  

  • 曲がった針のパーコレーション

    #時松幹, @松井淳

    日本物理学会 第73回年次大会（2018年）  2018.3 

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    Event date： 2018.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京理科大学野田キャンパス   Country：Japan  

    Percolation of bent needles

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MISC

  • ソフトコアのガラス転移ダイナミックス

    松井淳, 村中正

    分子シミュレーション研究会会誌アンサンブル 4(9), 41 (2007)   2007.9

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

  • 世界物理年2006 記念イベント「子どももおとなも楽しめるアインシュタインの宇宙」の報告

    松井淳

    日本物理学会誌61, 440–441 (2006)   2006.4

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

Works

  • 相対性理論シミュレーター

    松井淳、倉岡聡、池田昌浩

    2008.3

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    相対性理論の世界を疑似体感できるコンピュターソフトウェアと立体視装置の制作

  • ソフトウェア：高速ボロノイ分割

    松井淳

    2004.4

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    New algorithm for Fast Voronoi tesellation.

Professional Memberships

  • Physical Society of Japan

Committee Memberships

  • 日本物理学会   Steering committee member   Domestic

    2011.5 - 2012.5   

Academic Activities

  • Screening of academic papers

    Role(s)： Peer review

    2023

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：2

  • 庶務

    日本物理学会第74回年次大会  （ Japan ） 2019.3

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    Type：Competition, symposium, etc. 

    Number of participants：5,000

  • Screening of academic papers

    Role(s)： Peer review

    2019

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：1

  • Screening of academic papers

    Role(s)： Peer review

    2018

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：1

    Number of peer-reviewed articles in Japanese journals：0

    Proceedings of International Conference Number of peer-reviewed papers：0

    Proceedings of domestic conference Number of peer-reviewed papers：0

  • 運営

    日本物理教育学会　第32回物理教育研究大会  （ Japan ） 2015.8

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    Type：Competition, symposium, etc. 

    Number of participants：200

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Other

  • Organization of Simposium

    2006.11

Research Projects

  • Innvative control method for soft materials based on nanospin dynamics

    Grant number：20K20294  2020.4 - 2024.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Pioneering)

    木村 崇, 松井 淳, 大西 紘平, 鴇田 昌之

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    Grant type：Scientific research funding

    高精度で空間制御されたナノ磁性体のスピン配列により、水の濡れ性を制御する新奇な技術を確立し、これらを拡張することで、スピンを活用したソフトマテリアルの革新的制御手法を開発する。さらに同技術を界面制御技術へと高度化し、両系間の角運動量の受け渡しを実現する、すなわちスピントロニクスとソフトマテリアル材料の融合による新奇な量子物性分野の創生する。

    CiNii Research

  • MDによる化学反応を伴う凝縮系の構造制御 文部科学省科学技術振興調整費「イノベーション創出若手研究人材育成プログラム」に基づく研究

    2010.1 - 2010.3

    Joint research

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    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 相対性理論シミュレーター 教材開発の実習プログラム

    2007

    Ｐ＆Ｐ

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

  • ガラス転移ダイナミックスの全時空間スケールの計算

    Grant number：16740225  2004 - 2006

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

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    Authorship：Principal investigator  Grant type：Scientific research funding

  • 松井淳

    Grant number：13740242  2001 - 2002

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Encouragement of Scientists

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    Authorship：Principal investigator  Grant type：Scientific research funding

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Educational Activities

  • Physical Mathematics, Quantum Statistical Mechanics

Class subject

  • 量子統計物理学

    2024.4 - 2024.9   First semester

  • Quantum Statistical Physics

    2024.4 - 2024.9   First semester

  • 力学基礎演習

    2024.4 - 2024.9   First semester

  • 物理数学ⅡB

    2023.12 - 2024.2   Winter quarter

  • 物理数学Ⅱ（R2以前入学者用）

    2023.10 - 2024.3   Second semester

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FD Participation

  • 2023.3   Role：Participation   Title：【物理学科FD】物理数学の教育と効果的な演習に向けて

    Organizer：Undergraduate school department

  • 2022.3   Role：Participation   Title：全学FD:メンタルヘルス講演会

    Organizer：University-wide

  • 2022.3   Role：Participation   Title：【物理学科FD】ティーチング・フェロー制度の概要と講義での活用に向けて

    Organizer：Undergraduate school department

  • 2021.3   Role：Participation   Title：【物理学FD】ハイブリッド講義の実践例と講義活性化

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

  • 2020.12   Role：Participation   Title：【オンライン配信】新型コロナウィルス感染拡大状況での学生のメンタルヘルス

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

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Participation in international educational events, etc.

  • 2012.3

    G３０オフィス

    英語による教授能力向上のための研修

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    Venue：フィリピン・マニラ

    Number of participants：11

  • 2011.9

    G３０オフィス

    英語による教授能力向上のためのワークショップ

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    Venue：箱崎

    Number of participants：20

Other educational activity and Special note

  • 2023  Class Teacher  学部

  • 2022  Class Teacher  学部

  • 2021  Class Teacher  学部

  • 2020  Class Teacher  学部

  • 2019  Class Teacher  学部

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Outline of Social Contribution and International Cooperation activities

  • 世界物理年イベントの副委員長、相対論シミュレーターの開発と公開展示

Social Activities

  • オープンキャンパス特別講義「統計力学入門」

    九州大学理学部  九州大学  2023.8

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

    Type：Lecture

  • オープンキャンパス　講演会と研究紹介展示

    九州大学  バーチャルリアリティー会場  2022.8

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

    Type：Lecture

    オンライン開催が続いているオープンキャンパスにおいて，講演会や研究紹介展示を疑似体験できるようにバーチャルリアリティーを活用した。

  • オープンキャンパス　講演会と研究紹介展示

    九州大学  バーチャルリアリティー会場  2021.8

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

    Type：Lecture

    オンライン開催が続いているオープンキャンパスにおいて，講演会や研究紹介展示を疑似体験できるようにバーチャルリアリティーを活用した。

  • オープンキャンパス　学科紹介ビデオ

    九州大学  九州大学  2020.8

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

    Type：Other

    学科紹介動画の企画・作成

  • オープンキャンパス

    九州大学  九州大学  2019.8

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

    Type：Lecture

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Media Coverage

  • サイエンスアゴラの紹介 TV or radio program

    スカイパーフェクトＴＶ  2008.12

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    サイエンスアゴラの紹介

  • 物理年記念イベントの紹介 TV or radio program

    RKB毎日放送  2005.9

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    物理年記念イベントの紹介

Travel Abroad

  • 2012.3

    Staying countory name 1：Philippines   Staying institution name 1：アテネオ・デ・マニラ大学

  • 2007.7

    Staying countory name 1：Italy   Staying institution name 1：STATPHYS

  • 2004.3

    Staying countory name 1：Germany   Staying institution name 1：ミュンヘン工科大学