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Geonhwi Hwang's webpage

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HWANG, Geonhwi (ゴニ)

博士後期課程２年

北海道大学大学院工学院

応用物理学専攻

固体物理学研究室

theprex2eis.hokudai.ac.jp

英語ホームページ / English webpage

韓国語ホームページ / 국문으로 보기

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学歴

APR. 2024 - present
物理工学博士
北海道大学大学院工学院
APR. 2022 - MAR. 2024
物理工学修士
北海道大学大学院工学院
APR. 2018 - MAR. 2022
物理工学学士
北海道大学工学部
OCT. 2017 - MAR. 2018
日本語予備教育
北海道大学 高等教育推進機構
DEC. 2016 - SEP. 2017
日本語予備教育
慶熙大學校 國際教育院

研究

米国物理学会ジャーナル 第一著者論文１本

September 2023
Bulk-Edge Correspondence for Point-Gap Topological Phases in Junction Systems
Geonhwi Hwang and Hideaki Obuse, Phys. Rev. B 108, L121302 (2023).
21 October, 2024
Physics Seminar in Department of Physics, KAIST LINK
Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
Non-Hermitian point-gap topology in junction systems LINK
Geonhwi Hwang
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Time: 1 PM, Location: E6-2 #3441
16 - 19 September, 2025
The Physical Society of Japan 2025 Annual (80th) Meeting LINK
Hiroshima University, Hiroshima, Japan
Spectrum of the Hatano-Nelson model with binary disorder LINK
Geonhwi Hwang, Shoya Urano, and Hideaki Obuse
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Oral (Lecture No. 17pSK302-3)
16 - 19 September, 2025
The Physical Society of Japan 2025 Annual (80th) Meeting LINK
Hiroshima University, Hiroshima, Japan
Comparison of localization in the Hatano–Nelson and Sinai models via transfer matrix method and IPR analysis LINK
Shoya Urano, Geonhwi Hwang, and Hideaki Obuse
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Oral (Lecture No. 17pSK302-2), Presenter: Shoya Urano
16 - 19 September, 2025
The Physical Society of Japan 2025 Annual (80th) Meeting LINK
Hiroshima University, Hiroshima, Japan
Bulk-edge correspondence in continuous junction systems with point-gap topological phases avoiding discretization LINK
Aoki Yugawa, Geonhwi Hwang, and Hideaki Obuse
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Oral (Lecture No. 17pSK302-1), Presenter: Aoki Yugawa
4 - 8 August, 2024
ISSP-IIS Joint Symposium on Physics of Open Systems: Resonance, Symmetry and Topology LINK
The University of Tokyo, Kashiwa, Japan
Bulk-edge correspondence of junction systems for point-gap topological phases in continuous systems LINK
Aoki Yugawa, Geonhwi Hwang, and Hideaki Obuse
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Poster, Presenter: Aoki Yugawa
4 - 8 August, 2024
ISSP-IIS Joint Symposium on Physics of Open Systems: Resonance, Symmetry and Topology LINK
The University of Tokyo, Kashiwa, Japan
Comparing localization properties of the Hatano–Nelson and Sinai models via transfer matrix method LINK
Shoya Urano, Geonhwi Hwang, and Hideaki Obuse
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Poster, Presenter: Shoya Urano
4 - 8 August, 2024
ISSP-IIS Joint Symposium on Physics of Open Systems: Resonance, Symmetry and Topology LINK
The University of Tokyo, Kashiwa, Japan
The Spectrum for the Hatano-Nelson Model with Binary Random Potentials LINK
Geonhwi Hwang, Shoya Urano, and Hideaki Obuse
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Poster
18 - 21 March, 2025
The Physical Society of Japan 2025 Spring Meeting LINK
Online
Non-Hermitian proximity effect in continuous junction system with point-gap LINK
Aoki Yugawa, Geonhwi Hwang, and Hideaki Obuse
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Oral, presenter: Aoki Yugawa (Lecture No. 18pD1-7)
22 - 26 October, 2024
2024 The Korean Physical Society Fall Meeting LINK
Yeosu Expo Convention Center, Yeosu, Republic of Korea
Non-Hermitian point-gap topology in junction systems LINK
Geonhwi Hwang and Hideaki Obuse
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Oral (Presentation No. J7.07)
16 - 19 September, 2024
The Physical Society of Japan 2024 Annual (79th) Meeting LINK
Hokkaido University, Sapporo, Japan
Junction systems' bulk edge correspondence of point-gap topological phases in continuous model LINK
Aoki Yugawa, Geonhwi Hwang, and Hideaki Obuse
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Oral, presenter: Aoki Yugawa (Lecture No. 16pE318-10)
16 - 19 September, 2024
The Physical Society of Japan 2024 Annual (79th) Meeting LINK
Hokkaido University, Sapporo, Japan
Localization phenomena in the Hatano-Nelson model with binary random potentials LINK
Geonhwi Hwang and Hideaki Obuse
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Oral (Lecture No. 16pE318-8)
5 - 9 August, 2024
New Frontiers in Advanced Magnetism 2024 LINK
Hokkaido University, Sapporo, Japan
Bulk-Edge Correspondence for Point-Gap Topological Phases in Multi-Segmented Junction Systems LINK
Geonhwi Hwang and Hideaki Obuse
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Poster
16 - 19 July, 2024
META 2024: 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics LINK
Toyama International Conference Center, Toyama, Japan
Dual Symmetry Classification of Non-Hermitian Systems and Point-Gap Topology LINK
Zhiyu Jiang, Geonhwi Hwang, and Hideaki Obuse
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Oral, presenter: Hideaki Obuse
18 - 21 March, 2024
The Physical Society of Japan 2024 Spring Meeting LINK
Online
Point-Gap Topological Phases and Bulk-Edge Correspondence in Junction Systems: Multi-Segment Extension LINK
Geonhwi Hwang, Hideaki Obuse
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Oral (Lecture No. 18pD1-1)
26 SEP. - 05 OCT., 2023
Okinawa School in Physics 2023: Coherent Quantum Dynamics LINK
Okinawa Institute of Science and Technology, Onna-son, Okinawa, Japan
Bulk-Edge Correspondence for Point-Gap Topological Phases in Junction Systems LINK
Geonhwi Hwang and Hideaki Obuse
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Poster
16 - 19 Sepember, 2023
The Physical Society of Japan 2023 Annual (78th) Meeting LINK
Tohoku University, Sendai, Japan
Point-Gap Topology and Proximity Effects in Non-Hermitian Junction Systems LINK
Geonhwi Hwang and Hideaki Obuse
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Oral (Lecture No. 18aA106-7)
17 - 23 August, 2023
Physics of Open Systems and Beyond LINK
Hokkaido University, Sapporo, Japan
Bulk-Edge Correspondence for Point-Gap Topological Phases in Junction Systems LINK
Geonhwi Hwang and Hideaki Obuse
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Oral
3 - 4 April, 2023
Condensed Matter Science in the Age of Computation LINK
The University of Tokyo, Tokyo, Japan
Non-Hermitian Topological Phases and Arbitrary Precision Operations with Julia LINK
Geonhwi Hwang, Zhiyu Jiang, and Hideaki Obuse
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Oral, presenter: Hideaki Obuse
22 - 25 March, 2023
The Physical Society of Japan 2023 Spring Meeting LINK
Online
Bulk-Boundary Correspondence for Non-Hermitian Topological Phases in Junction Systems LINK
Geonhwi Hwang and Hideaki Obuse
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Oral (Lecture No. 23pD1-6)

奨学金及び受賞歴

October 2025
日本学術振興会 特別研究員 (JSPS DC2)
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採用内定 (2026年4月〜2028年3月)
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大韓民国陸軍 現役服務のため辞退
APR. 2024 - SEP. 2025
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授業料全額 (¥803,700) 免除
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兵役義務を履行するため、2025年10月以降は自己負担 (制度上減免申請不可)
October 2024
EXEX博士人材フェローシップ採用 (JST SPRING)
APR. 2025 - MAR. 2027
EXEX博士人材フェロー (２・３年次)
北海道大学大学院工学院
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研究全額支援：512万円 (研究奨励金・研究費など)
September 2024
EXEX博士人材フェローシップ採用
APR. 2024 - MAR. 2025
EXEX博士人材フェロー (１年次)
北海道大学大学院工学院
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研究全額支援：256万円 (研究奨励金・研究費など)
APR. 2022 - MAR. 2024
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授業料 (¥937,650) 免除 (初学期に対し半額免除、以降全額免除)
November 2016
日韓共同理工系学部留学生先発
DEC. 2016 - SEP. 2017
日本語予備教育期間
慶熙大學校 國際教育院
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日本語予備教育及び専攻・教養授業受講
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授業料全額 (₩600,000/月) 免除、生活費 (₩600,000/月) 及び出国航空券支援など
OCT. 2017 - MAR. 2018
日本語予備教育期間
北海道大学 高等教育推進機構
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日本語課程受講及び学部進学準備
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入学検定料全額 (¥17,000) 及び授業料全額 (¥250,000) 免除、生活費 (¥117,000/月) 支援など
APR. 2018 - MAR. 2022
学部期間
北海道大学工学部
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採用時に応用物理工学コースへ事前配属 (一般入試の場合、１年次の成績により２年次進級時にコース配属)
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入学料全額 (¥282,000) 及び授業料全額 (¥535,800/年) 免除、生活費 (¥117,000/月) 及び帰国航空券支援など

指導経験

APR. 2025 - MAR. 2026
Teaching Fellow
School of Engineering, Hokkaido University
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Applied Mathematics I (lecture for second year undergraduate students, 1st semester)
APR. 2025 - MAR. 2026
Teaching Assistant
School of Engineering, Hokkaido University
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Applied Mathematics I (lecture for second year undergraduate students, 1st semester)
APR. 2024 - MAR. 2025
Teaching Fellow
School of Engineering, Hokkaido University
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Applied Mathematics II (lecture for second year undergraduate students, 2nd semester)
APR. 2024 - MAR. 2025
Teaching Assistant
School of Engineering, Hokkaido University
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Applied Mathematics II (lecture for second year undergraduate students, 2nd semester)
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Quantum Mechanics II (lecture for third year undergraduate students, 2nd semester)
APR. 2023 - MAR. 2024
Teaching Assistant
School of Engineering, Hokkaido University
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Applied Mathematics II (lecture for second year undergraduate students, 2nd semester)
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Quantum Mechanics II (lecture for third year undergraduate students, 2nd semester)
APR. 2022 - MAR. 2023
Teaching Assistant
School of Engineering, Hokkaido University
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Applied Mathematics I (lecture for second year undergraduate students, 1st semester)
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Applied Mathematics II (lecture for second year undergraduate students, 2nd semester)
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Quantum Mechanics II (lecture for third year undergraduate students, 2nd semester)

言語及び関心分野

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自然言語: 韓国語 (母語), 英語 (上級), 日本語 (上級), 中国語 (初級).

プログラミング及びマークアップ言語: Fortran (主言語), Julia, Python, TeX, HTMLなど.

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TOEICスコア900点台

TOEICスピーキングテスト170点以上

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JLPT N1取得 (読解及び聴解満点)

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関心分野: 開放量子系, 無秩序系, アンダーソン局在, 量子ウォーク.

趣味: 濾過理論, フラクタル, ネットワーク, グラフ理論, 整数論, 位相幾何学, 複素解析学, 東洋哲学, 聖書, 西洋音楽史.

関連リンク

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日韓共同理工系学部留学生先発事業