理化学研究所数理創造プログラム (iTHEMS) | iTHEMS

Featured News

RIKEN - LBNL Workshop on Quantum Information Science on September 3-6, 2024

On Sep. 3 (Tue) - 6 (Fri), RIKEN - LBNL Workshop on Quantum Information Science was held at Lawrence Berkeley National Laboratory (LBNL). The workshop was co-hosted by RIKEN-iTHEMS and LBNL and sponsored by RIKEN Quantum, with 32 and 40 participants from Japan and USA, respectively. This was the second in-person workshop by RIKEN and LBNL on quantum information science since the first was held at LBNL in January 2019 before the Covid-19 pandemic. The purpose of the workshop was to bring together researchers worldwide to discuss and collaborate on the latest developments in quantum technologies and quantum computing including algorithms, hybrid quantum-classical computing, error mitigation, and applications in physics and chemistry. There were 36 talks and 4 poster presentations during the entire four days. In the afternoons of the second and third days, in addition to tours of LBNL's Advanced Quantum Testbed (AQT) and National Energy Research Scientific Computing Center (NERSC) facilities, special sessions delved into discussions on several focus areas and provided networking opportunities for future collaborations.

2024-10-02
Farewell message from Eiji Inoue

Our colleague Eiji Inoue will move on to a new career as an assistant professor at Kyoto University as of Oct. 1, 2024. We all will miss him and wish him the best of luck in his latest endeavor. Here is a message from Eiji Inoue: <i>I spent three and a half years in iTHEMS as an SPDR on math. I would like to thank the program director and assistants for their mindful support over these three and a half years. I also wish to thank iTHEMS members for discussion on many occasions. These years I spent in iTHEMS were invaluable for me. Among all, the best experience for me was that I could gradually get a feeling on "physics in the real world" not only mathematical structure of physics, from the choice of words physicists use in daily discussion. In these casual discussions, I could also try if my understanding of physics are correct. I also enjoyed playing quantum computers. I think it was impossible to experience without this tolerant environment of iTHEMS; indeed, it just started from a casual conversation with the director. It was the first time I experienced quantum phenomena, especially quantum entanglement, in the real world where I exist. This may sound a little strange, but I feel like I haven't had that feeling of interest in how the real world works in a long time. While I was going through these experiences like a newborn child, as a mathematician, I could finally achieve my original project on Perelman entropy in the last half year during my visits to Cambridge, Montreal and Aarhus. There are still many thigs to do, but this is certainly the foundation of this new theory. One regret is that I could not finish writing a paper on this result while enrolled at iTHEMS. I'll be an assistant professor at Kyoto University (Department of Math) from October. I welcome people from iTHEMS to come to Kyoto and discuss. I will also ask iTHEMS for help. See you again! </i>

2024-09-27
Farewell message from Kazuki Kannaka

Our colleague Kazuki Kannaka will move on to a new career as an assistant professor at Kanazawa University as of Oct. 1, 2024. We all will miss him and wish him the best of luck in his latest endeavor. Here is a message from Kazuki Kannaka: <i>At iTHEMS, thanks to the support from Hatsuda-san, Tada-san, Tsuboi-sensei, and all the assistants, I was able to focus on my research in a wonderful environment. During this period, I made several discoveries that were interesting at least to me. Also, discussing with researchers from other fields at iTHEMS was exciting. I am especially grateful to Namba-san and Iritani-san for providing the opportunity for such discussions. I look forward to continuing our research exchanges. Thank you!</i>

2024-09-24
エネルギー透過には情報が必要－境界面上の物理に迫る－

九州大学高等研究院の楠亀裕哉准教授（理化学研究所数理創造プログラム客員研究員）、カリフォルニア工科大学教授を兼ねる東京大学国際高等研究所カブリ数物連携宇宙研究機構の大栗博司教授、テキサス大学のAndreas Karch 教授、Hao-Yu Sun 研究員、Mianqi Wang 大学院生らの研究グループは、2次元の共形場の量子論について、エネルギー透過率、情報量透過率、そして場の量子論のヒルベルト空間の大きさの指標（正確には、高エネルギーでの状態数の増加率）の3つの量の間に、（エネルギー透過率）≤（情報量透過率）≤（ヒルベルト空間の大きさの指標）という明解な不等式が成り立つことを示しました。詳細は下記関連リンクより、九州大学のウェブサイトをご覧ください。

2024-09-20
エムポックス感染者の隔離はどのように終了するのが良い？－隔離終了タイミング検証のシミュレータを開発－

国立大学法人東海国立大学機構名古屋大学大学院理学研究科の岩見真吾教授（兼理化学研究所数理創造プログラム客員研究員）の研究グループは、オランダ国立公衆衛生環境研究所（RIVM）および愛媛大学の三浦郁修博士らとの共同研究により、エムポックス（クレードⅡ）感染者の隔離を終了するタイミングを検証するためのシミュレータ（シミュレーション用ソフトウェア）を新たに開発しました。詳細は関連リンクより、名古屋大学研究成果発信サイトをご覧ください。

2024-09-13
Farewell message from Keita Mikami

Our colleague Keita Mikami will move on to a new career as an assistant professor at University of Hyogo as of Oct. 1, 2024. We all will miss him and wish him the best of luck in his latest endeavor. Here is a message from Keita Mikami: <i>My five and a half years at iTHEMS have been truly outstanding. The environment here has been exceptional, significantly enriching my research in many different ways. One of the key highlights has been the stimulating and insightful discussions with researchers from diverse fields. Furthermore, my experiences working on MACS, organizing math seminars, and coordinating other events such as SSP have been invaluable. My research visit to UCB was also an incredible experience. I would like to extend my sincere gratitude to all the researchers and assistants at iTHEMS. I am especially grateful to the director, Hatsuda-san, for his unwavering support.As I move forward, I hope to continue interacting with the iTHEMS community, albeit in a new capacity. Once again, thank you for these five wonderful years.</i>

2024-09-10
RIKEN Research: More magic in twisted layers of graphene

Magnetic fields can engineer flat bands in twisted graphene layers to create a new playground for exotic physics, RIKEN physicists have shown. The exotic properties of graphene—a single layer of carbon atoms in a hexagonal lattice—are now well established. Electrons effectively move through graphene as if they have no mass. This is an exciting prospect for creating electronic devices with functionalities beyond those of silicon. But things get even weirder when two or more layers of graphene are combined. To read more, please visit the related link.

2024-09-10
RIKEN Research: The link between fuzzy images and quantum fields

Mathematical solutions to thorny quantum problems can be found more quickly by exploiting the correspondence between the statistical methods used in deep learning and techniques for implementing quantum simulations, a team led by a RIKEN researcher has shown. One of the most successful theories in modern physics, quantum field theory is physicists’ attempt to combine three theories—classical field physics, Einstein’s special relativity and quantum mechanics—into a single mathematical model. It has been successful in solving problems in particle physics and condensed-matter physics, but these calculations are computationally intensive and require a lot of computer power. To read more, please visit the related link.

2024-09-02
Farewell message from Takeru Yokota

Our colleague Takeru Yokota will move to RIKEN Quantum Computer Center (RQC) starting from September 1, 2024, and will then be posted to a University as a faculty member as of April 1, 2025. We all will miss him and wish him the best of luck in his latest endeavor. Here is a message from Takeru Yokota: <i>I am grateful for having spent the past three and a half years in an environment where I could focus on research at iTHEMS. Engaging in discussions with researchers from various fields of mathematical sciences has been a valuable experience. I would like to express my deep appreciation to the director, Hatsuda-san, the staff, and the assistants who created such a wonderful environment, as well as to the members who engaged in these valuable discussions. I look forward to continuing my interactions with the members of iTHEMS in the future.</i>

2024-08-27
タンパク質凝集のコード解読－アミノ酸配列からタンパク質分子の集まりやすさを予測する－

理化学研究所（理研）生命機能科学研究センター生体非平衡物理学理研白眉研究チームの足立景亮研究員（数理創造プログラム研究員）、川口喬吾理研白眉研究チームリーダー（開拓研究本部川口生体非平衡物理学理研白眉研究チーム理研白眉研究チームリーダー、東京大学大学院理学系研究科附属知の物理学研究センター准教授）の研究チームは、タンパク質分子の集まりやすさやタンパク質凝集体の混ざりやすさを、アミノ酸配列に基づいて予測する理論を提案しました。本研究成果は、膜を持たない細胞小器官の形成機構の解明に貢献し、将来的には、タンパク質のアミノ酸変異が細胞機能に与える影響を予測する理論に発展していくと期待されます。詳細は、関連リンクをご覧下さい。

2024-07-24

Videos

数理創造プログラム（Interdisciplinary Theoretical and Mathematical Sciences Program, 略称 iTHEMS アイテムズ）は、理論科学・数学・計算科学の研究者が分野の枠を越えて基礎研究を推進する、理化学研究所の新しい国際研究拠点です。iTHEMSでは、「数理」を軸とする分野横断的手法により、宇宙・物質・生命の解明や、社会における基本問題の解決を目指しています。

iTHEMSについて

初田哲男の写真

プログラムディレクター: 初田哲男

Upcoming Events

イベント一覧イベントカレンダー

Opportunities

採用情報一覧

Latest News

ニュース一覧

Upcoming Visitors

広野雄士

大阪大学大学院理学研究科物理学専攻助教

期間: 2024年10月9日(水) - 11日(金)

来訪場所: 理化学研究所和光キャンパス

ビジター一覧