Achievements during FY2025

Project D01

Papers

• M. Hirasawa, M. Honda, A. Matsumoto, J. Nishimura, A. Yosprakob, "Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at θ = π from imaginary θ simulations", JHEP, 2025, 05, 009, 2025/05/02, https://link.springer.com/article/10.1007/JHEP05(2025)009
• K. Kawabata, T. Nishioka, T. Okuda, S. Yahagi, "Fermionic CFTs from topological boundaries in abelian Chern-Simons theories", JHEP, 2025, 05, 105, 2025/05/13, https://link.springer.com/article/10.1007/JHEP05(2025)105
• P. Nandy, A. S. Matsoukas-Roubeas, P. Martinez-Azcona, A. Dymarsky, A. del Campo, "Quantum Dynamics in Krylov Space: Methods and Applications", Physics Reports, 2025, 1125–1128, 1–82, 2025/06/18, https://doi.org/10.1016/j.physrep.2025.05.001
• M. Honda, H. Matsui, K. Numajiri, K. Okabayashi, "Jackiw-Teitelboim Gravity and Lorentzian Quantum Cosmology", Phys. Rev. D, 2025, 111, 126022, 2025/06/30, https://doi.org/10.1103/vrcy-y61l
• H. Ebisu, M. Honda, T. Nakanishi, S. Shimamori, "New Field Theories with Foliation Structure and Subdimensional Particles from Godbillon-Vey Invariant", Phys. Rev. D, 2025, 112, 025010, 2025/07/15, https://doi.org/10.1103/4fz5-9298
• E. Itou, A. Matsumoto, Y. Nakayama, T. Onagi, "Monte Carlo study on Heisenberg model with local dipolar interaction", Phys. Rev. B, 2025, 112, 13, 134409, 2025/10/07, https://journals.aps.org/prb/abstract/10.1103/95xx-m6xg
• K. Ando, K. Kawabata, T. Nishioka, "Gauging Z_N symmetries of Narain CFTs", JHEP, 2026, 02, 58, 2026/02/04, https://link.springer.com/article/10.1007/JHEP02(2026)058
• H. Nakayama, T. Nishioka, "Holographic defect CFTs with Dirichlet end-of-the-world branes", JHEP, 2026, 03, 007, 2026/03/02, https://link.springer.com/article/10.1007/JHEP03(2026)007
• N. Iizuka, A. Ishibashi, K. Maeda, H. Nakayama, T. Nishioka, "Energy Conditions and Quantum Information", Canadian Journal of Physics, 2026, 104, 1–33, 2026/03/03, https://doi.org/10.1139/cjp-2025-0271

Presentations

• E. Itou, "Equation of state of QCD(-like) theory using Lattice Monte Carlo simulations", From Quarks to Neutron Stars: Insights from kHz gravitational waves, 2025/04, The University of Tokyo, Japan
• E. Itou, "Speed of sound exceeding the conformal bound in dense QCD-like theories", The 29th International Nuclear Physics Conference (INPC 2025), 2025/05, Daejeon Convention Center, South Korea
• M. Honda, "Yang-Mills theta-angle on the lattice Part II", KITP Program "Generalized Symmetries in Quantum Field Theory: High Energy Physics, Condensed Matter, and Quantum Gravity", 2025/05/08, Kavli Institute for Theoretical Physics (KITP), USA
• E. Itou, "Equation of state of finite-density 2color QCD at lower temperature from lattice simulations", The 21th International Conference on QCD in Extreme Conditions (XQCD), 2025/07, University of Wrocław, Poland
• T. Okuda, "Fermionic CFTs from topological boundaries in abelian Chern-Simons theories", Field Theory and String Theory, 2025/07/28, Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Japan
• E. Itou, "Composite particle spectroscopy in the Hamiltonian approach", Hamiltonian Lattice Gauge Theories: Status, Novel Developments and Applications, 2025/09, European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Italy
• T. Okuda, "Critical behavior of the Schwinger model via gauge-invariant variational uniform matrix product states", Hamiltonian Lattice Gauge Theories: Status, Novel Developments and Applications, 2025/09/03, European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Trento, Italy
• T. Nishioka, "Holographic model of defect CFTs", Strings in Seoul 2025, 2025/09/22, Korea Institute for Advanced Study (KIAS), South Korea
• E. Itou, "Recent progress on the phase structure and EoS of dense two-color QCD", International Workshop on Advances in Lattice QCD, 2025/10, Institute of Modern Physics, Chinese Academy of Sciences (Huizhou), China
• T. Nishioka, "Holographic model of defect CFTs", Diving Deeper into Defects: On the Intersection of Field Theory, Quantum Matter, and Mathematics, 2025/10/27, Isaac Newton Institute for Mathematical Sciences, University of Cambridge, United Kingdom
• E. Itou, "Gauge-invariant PEPS for pure Z2 Gauge theory and its entanglement", The Simons Center of Geometry and Physics Workshop, 2025/11, Stony Brook University, USA
• T. Okuda, "Critical behavior of the Schwinger model via gauge-invariant variational uniform matrix product states", 42nd International Symposium on Lattice Field Theory (Lattice 2025), 2025/11/05, Tata Institute of Fundamental Research, Mumbai, India
• T. Okuda, "Fermionic CFTs from topological boundaries in abelian Chern-Simons theories", ADS Seminar, 2025/11, Yau Mathematical Sciences Center, Tsinghua University, Beijing, China
• E. Itou, "New Developments in Theoretical Particle Physics: Toward Quantum Computation", Perspective on Time, Uncertainty and Quantum Computation, 2025/12/08, Nishijin Plaza, Kyushu University, Japan
• E. Itou, "２カラーQCDのハドロンスペクトルの密度依存性", The Physical Society of Japan Spring Meeting 2026, 2026/03/26, Online

Articles for General Public

• Y. Matsuo, "物理でいかに特殊関数が使われるか", 数理科学, 2025/06, サイエンス社
• E. Itou, "音速は光速の1/√3 倍を超えられるか？", Journal of the Physical Society of Japan, Vol. 81, No. 2, 2026/02, The Physical Society of Japan

Workshop Organizations

• YITP Workshop "非摂動的場の理論の進展と今後の課題2025", E. Itou, Kyoto University, Yukawa Institute for Theoretical Physics (YITP), Kyoto, Kyoto, Japan, 2025/05/22–2025/05/23

Outreach

• E. Itou, Public Lecture/Seminar, 2025/07/28, General Audience, approx. 500 participants, "第26回 京都大学 情報学シンポジウム, 社会情報学と物理学の融合で拓く知のフロンティア, 『理論と観測をつなぐ物理学：格子QCDと量子計算の最前線』", Kyoto University Informatics Symposium, https://www.i.kyoto-u.ac.jp/Symposium/2025/

Awards

• M. Honda, "令和７年度 文部科学大臣表彰 若手科学者賞", Ministry of Education, Culture, Sports, Science and Technology (MEXT), 2025/04
• Kazunobu Maruyoshi, Takuya Okuda, Juan W Pedersen, Ryo Suzuki, Masahito Yamazaki and Yutaka Yoshida, "Best Paper Prize 2025", Journal of Physics A, 2025/10

Project D02

Papers

• Kenji Harada, Tsuyoshi Okubo, and Naoki Kawashima, "Tensor tree learns hidden relational structures in data to construct generative models", Machine Learning: Science and Technology, 6, 25002, 2025/04/01, 10.1088/2632-2153/adc2c7
• Kohei Fukai, Balazs Pozsgay, "Quantum circuits with free fermions in disguise", Journal of Physics A, 58, 175202, 2025/4/24, 10.1088/1751-8121/adcd18
• Hosho Katsura, Chihiro Matsui, Chiara Paletta, Balazs Pozsgay, "Weak ergodicity breaking with isolated integrable sectors", Physical Review Research, 7(2), 023099, 2025/4/29, 10.1103/PhysRevResearch.7.023099
• Yuta Sakai, Chisa Hotta, "Dynamical dimerization and subdiffusive transport of strongly correlated neutral-ionic systems coupled to lattices", Physical Review B, 111, 214307, 2025/6/1, https://journals.aps.org/prb/abstract/10.1103/6b36-r8h8
• Hironobu Yoshida, Niclas Heinsdorf, Hosho Katsura, "Edge-Edge Correlations without Edge-States: η-clustering State as Ground State of the Extended Attractive SU(3) Hubbard Chain", Physical Review A, 111(6), 063307, 2025/6/6, 10.1103/PhysRevA.111.063307
• H Nakai, Masafumi Udagawa, C Hotta, "Spinor ice correlation in flat-band electronic states on kagome and pyrochlore lattices with spin-orbit coupling", Physical Review B, 111, 235154, 2025/6/30, https://journals.aps.org/prb/abstract/10.1103/ksdp-p4pm
• K Matsuki, C Hotta, K Asano, "Scan calculation of the density of states: Real-space cluster perturbation theory applied to the inhomogeneous Hubbard model in one dimension", Physical Review B, 112, 45146, 2025/7/28, https://journals.aps.org/prb/abstract/10.1103/q6vk-cjg8
• H Nakai, C Hotta, "Spin amplitude wave due to dipole-quadrupole hybridization in spin-1 pyrochlore magnets", Physical Review B, 112, 54401, 2025/8/1, https://journals.aps.org/prb/abstract/10.1103/lg4b-152s
• Hosho Katsura, Dirk Schuricht, "A brief note on the G2 Affleck-Kennedy-Lieb-Tasaki chain", SciPost Phys. Core, 5(3), 008, 2025/8/15, 10.21468/SciPostPhysCore.8.3.052
• Niclas Heinsdorf, Darshan G. Joshi, Hosho Katsura, Andreas P. Schnyder, "Fate of Bosonic Topological Edge Modes in the Presence of Many-Body Interactions", Physical Review Letters, 135(14), 146702, 2025/10/3, 10.1103/1pty-fvpf
• Toshiya Hikihara, Hiroshi Ueda, Kouichi Okunishi, Kenji Harada, Tomotoshi Nishino, "Improving accuracy of tree-tensor network approach by optimization of network structure", Phys. Rev. B, 112, 134427, 2025/10/16, https://doi.org/10.1103/ljj8-tkpc
• Nanse Esaki, Yutaka Akagi, Karlo Penc, Hosho Katsura, "Spin Nernst and thermal Hall effects of topological triplons in quantum dimer magnets on the maple-leaf and star lattices", Physical Review B, 112(13), 134435, 2025/10/20, 10.1103/1yv1-wtx8
• Tomonari Mizoguchi, Soshun Ozaki, Hiroyasu Matsuura, "Orbital Magnetism in Honeycomb Ladder", Journal of the Physical Society of Japan, 94(11), 114704, 2025/10/24, https://doi.org/10.7566/JPSJ.94.114704
• Masaya Kunimi, Yusuke Kato, Hosho Katsura, "Systematic construction of asymptotic quantum many-body scar states and their relation to supersymmetric quantum mechanics", Phys. Rev. Research, 7(4), 043107, 2025/10/27, 10.1103/zstl-s1y2
• Ryo Watanabe, Hidetaka Manabe, Toshiya Hikihara, Hiroshi Ueda, "TTNOpt: Tree tensor network package for high-rank tensor compression", Computer Physics Communications, 319, 109918, 2025/10/29, https://doi.org/10.1016/j.cpc.2025.109918
• Alice Marche, Alberto Nardin, Hosho Katsura, Leonardo Mazza, "SU(3) Fermi-Hubbard gas with three-body losses: symmetries and dark states", Physical Review Research, 7(4), 043124, 2025/11/3, 10.1103/v6rg-q49v
• Shojiro Kimura, Hiroaki Onishi, Yasuo Narumi, Kouichi Okunishi, Masayuki Hagiwara, Koichi Kindo, Hikomitsu Kikuchi, "Quantum Phase Transition and Magnetic Excitation in the S = 1/2 Ising-like Antiferromagnetic Chain CsCoCl3 in Transverse Magnetic Fields", Journal of the Physical Society of Japan, 94(12), 124703, 2025/11/12, https://doi.org/10.7566/JPSJ.94.124703
• R. Makuta, C. Hotta, "Effective spin model with anisotropic exchange interactions for the spin-orbit coupled Hubbard model at half-filling", Phys. Rev. B, 113, 35101, 2026/1/15, https://doi.org/10.1103/hcg4-fdz9
• Katsuya O. Akamatsu, Kenji Harada, Tsuyoshi Okubo, Naoki Kawashima, "Plastic tensor networks for interpretable generative modeling", Machine Learning: Science and Technology, 7, 15014, 2026/01/21, 10.1088/2632-2153/ae3048
• Takumi Kaneda, Keisuke Fujii, Hiroshi Ueda, "Large-Scale Quantum Device Benchmarking via LXEB with Particle-Number-Conserving Random Quantum Circuits", Physical Review Research, 8(1), 13082, 2026/1/26, https://doi.org/10.1103/ssrm-kddv
• Kohei Fukai, Hosho Katsura, "Integrability of a family of clean SYK models from the critical Ising chain", Phys. Rev. B, 113(11), 115107, 2026/3/4, 10.1103/g4b2-n9c8
• M. Kawano, C. Hotta, "Classification of magnon thermal Hall systems based on U(1) to non-Abelian gauge fields", Journal of Physics: Condensed Matter, 38, 145801, 2026/4/7, https://iopscience.iop.org/article/10.1088/1361-648X/ae55f4

Presentations

• H. Katsura, "Quantum many-body scars related to vector and scalar chiralities", NQCM2025, 2025/05/20, The University of Tokyo, Japan
• H. Katsura, "Disorder-free SYK-like models", Quantum Information Dynamics and Non-Equilibrium Physics, 2025/06/25, Korea Institute for Advanced Study (KIAS), South Korea
• H. Katsura, "Integrable SYK-like models", Challenges in Integrability, 2025/11/20, Chinese Academy of Sciences, Wuhan, China
• S. Kitahama, A. Nardin, L. Mazza, H. Katsura, "分数量子ホール系のエッジに現れる量子KdV方程式の量子ソリトン状態", The Physical Society of Japan Annual Meeting (80th), 2025/9/18, Hiroshima University, Japan
• K. Fukai, H. Katsura, "乱れのない Sachdev-Ye-Kitaev 模型の厳密解：臨界Ising鎖の可積分性からの導出", The Physical Society of Japan Spring Meeting 2026, 2026/3/23, Online, Japan
• K. Fukai, H. Katsura, "乱れのない Sachdev-Ye-Kitaev 模型の厳密解：臨界Ising鎖の可積分性からの導出", The Physical Society of Japan Spring Meeting 2026, 2026/3/25, Online, Japan
• C. Hotta, "Higher rank gauge fields to produce thermal Hall effects", SPICE 2025, 2025/5/7, Germany
• C. Hotta, "Underlying higher-rank gauge structures in metals and insulating magnets", CEMS Symposium on Emergent Quantum Materials 2025, 2025/5/21, Japan
• C. Hotta, "Magnon thermal Hall effect via higher rank gauge fields", Highly Frustrated Magnetism 2025, 2025/5/29, Canada
• C. Hotta, "One-shot spectroscopy", YITP Workshop on Higher-Order Entangled Quantum Phases, 2025/9/3, Japan
• C. Hotta, "Dimerization, charge fluctuation, and nonreciprocal dynamics", ISCOM2025, 2025/10/1, Japan
• C. Hotta, "Plateau state of the spin 3/2 kagome antiferromagnet", Quantum Spin Liquids, 2025/10/9, Hungary
• C. Hotta, "Realizing fictitiously bulk state in matrix product state representation", Extreme Universe 2025, 2025/10/30, Japan
• C. Hotta, "Embedding environment matrix product operator to quantum-many-body system", TNSAA2025, 2025/12/16, Taiwan
• C. Hotta, "Projecting MPS to be exact", Entanglement and Topology in Interacting Quantum Matter in Benasque, 2026/2/15-21, Spain
• C. Hotta, "カゴメ磁性体のプラトー励起", The Physical Society of Japan Annual Meeting (80th) Symposium, 2025/9/17, Japan
• H. Saito, C. Hotta, "Kitaev honeycomb模型の有限系における厳密な行列積状態の構成と解析", The Physical Society of Japan Annual Meeting (80th), 2025/9/17, Japan
• K. Asano, K. Matsuki, C. Hotta, "ワンショットスペクトロスコピー:非一様系に対するクラスター摂動論の応用", The Physical Society of Japan Annual Meeting (80th), 2025/9/17, Japan
• R. Makuta, C. Hotta, "スピン軌道相互作用のあるハバード模型の基底状態におけるエネルギーのkinkとWilson loopの対応", The Physical Society of Japan Annual Meeting (80th), 2025/9/17, Japan
• S. Shimozono, C. Hotta, "熱的純粋行列積状態による有限温度ダイナミクスII", The Physical Society of Japan Annual Meeting (80th), 2025/9/19, Japan
• S. Ozaki, K. Mitsumoto, C. Hotta, "LiVS2のクエンチダイナミクスと準安定状態の形成", The Physical Society of Japan Annual Meeting 2025, 2025/9/19, Japan
• S. Ozaki, K. Mitsumoto, C. Hotta, "Quench dynamics and formation of metastable states in LiVS2", TTQM2025, 2025/10/21, Japan
• K. Okunishi, "A holographic aspect of dynamical mean-field theory", SQAI-NCTS Workshop on Quantum Technologies and Machine Learning, 2025/8/26, National Taiwan University, Taiwan
• K. Okunishi, M. Koga, "動的平均場理論とホログラフィックくりこみ群", The Physical Society of Japan Annual Meeting 2025, 2025/9/19, Hiroshima University, Japan
• T. Kaise, K. Okunishi, "S=1 bilinear biquadratic鎖の端状態とエンタングルメントスペクトル", The Physical Society of Japan Annual Meeting 2025, 2025/9/18, Hiroshima University, Japan
• N. Maeshima, T. Hikihara, K. Okunishi, "Magnetic and thermodynamic properties of the S=1/2 zigzag ladder at finite magnetic fields", YITP Workshop on Higher-Order Entangled Quantum Phases, 2025/9/3, Kyoto University, Japan
• K. Harada, T. Okubo, N. Kawashima, "生成モデリングのためのミニバッチアニーリングを組み込んだ適応的テンソルツリー法", The Physical Society of Japan Annual Meeting 2025, 2025/9, Hiroshima University, Japan
• K. Harada, "Structure-Optimized Tensor Network Generative Models for Data Distributions", TNSAA2025, 2025/12/16, Taiwan
• R. Watanabe, H. Manabe, T. Hikihara, H. Ueda, "TTNOpt:高次元テンソル圧縮のためのツリーテンソルネットワークパッケージ", The Physical Society of Japan Annual Meeting (80th), 2025/9/17, Hiroshima University, Higashi-Hiroshima, Japan
• H. Ueda, "Application of Tensor Network Schemes in Quantum Algorithms for Analyzing Many-Body Systems", Quantinuum May 2025 Training Session, 2025/5/20, Nakanoshima Center, Osaka University, Osaka, Japan
• H. Ueda, "量子デバイス検証とテンソル圧縮手法 ― 物性物理と量子情報の接点から ―", SQAI Quantum Embedding Group Seminar, 2025/9/22, Online
• S. Miyakoshi, T. Sugimoto, H. Ueda, "Density Matrix Renormalization Group-Inspired Framework for Efficient Quantum Circuit Optimization", SCES2025, 2025/7/10, Hotel Bonaventure, Montreal, Canada
• S. Miyakoshi, T. Sugimoto, H. Ueda, "Layered Quantum Circuit Construction Inspired by Density Matrix Renormalization Group", StatPhys29, 2025/7/14, Palazzo dei Congressi & Palafiori, Florence, Italy
• S. Miyakoshi, T. Sugimoto, H. Ueda, "Variational Quantum Circuit Optimization via Density Matrix Renormalization Group", Quantum Innovation 2025, 2025/7/29, Congress Square Grand Green Osaka, Osaka, Japan
• S. Miyakoshi, T. Sugimoto, H. Ueda, "Advancing Quantum Circuit Optimization Through Density Matrix Renormalization Group Techniques", LT30, 2025/8/12, Bilbao Exhibition Centre, Bilbao, Spain
• H. Ueda, "量子HPC連携プラットフォームの構築：量子HPC連携の可能性と応用 ー次世代計算の展望ー", Frontiers of Next-Generation Computing (CEATEC 2025), 2025/10/16, Makuhari Messe, Japan
• H. Ueda, "From Vector Data to Quantum Circuits: TTNOpt for Efficient Tensor-Network Encoding", TNSAA2025, 2025/12/16, National Cheng Kung University, Taiwan
• K. Fukai, "Structure of Local Conservation Laws in Quantum Integrable Systems", Student Workshop on Integrability, 2025/6/20, ELTE, Budapest, Hungary
• K. Fukai, "Quantum circuits with free fermions in disguise", Extreme Universe Collaboration & The 7th Extreme Universe School, 2025/7/2, Kyukamura Irago, Aichi, Japan

Articles for General Public

• H. Katsura, "量子物理学と行列", 数理科学, 2025/11, サイエンス社

Press Release

• K. Harada, "テンソルネットワークによる生成モデル―株式騰落パターンから相関構造が発現―", Net news, Kyoto University Press Release, 2025/4/7, https://www.kyoto-u.ac.jp/ja/research-news/2025-04-07
• K. Harada, "テンソルツリーによる生成モデル構築のスキーム―生物系統樹など、因果関係の解明が可能―", Net news, Kyoto University Press Release, 2026/01/23, https://www.kyoto-u.ac.jp/ja/research-news/2026-01-23-1

Workshop Organizations

• "第2回TNの媒介する量子・古典融合研究集会", Organizer: Tensor Network Mediated Quantum-Classical Hybrid Research, H. Ueda, Osaka University, Osaka University, Toyonaka, Japan, 2025/9/25
• "第3回TNの媒介する量子・古典融合研究集会", Organizer: Tensor Network Mediated Quantum-Classical Hybrid Research, H. Ueda, Osaka University, Innogate Osaka, Osaka, Japan, 2026/3/30
• "基礎物理学研究所短期研究会 高次にもつれた量子相探索の展開", Extreme Universe / Asymmetric Quantum, C. Hotta, The University of Tokyo, Yukawa Institute for Theoretical Physics (YITP), Kyoto, Japan, 2025/9/1-2025/9/3

Outreach

• K. Okunishi, Public Lecture / Seminar, 2026/3/10, General Public / University Students, 40 participants, "数値くりこみ群とテンソルネットワークの系譜", Computational Physics Spring School, https://compphysschool.github.io/2026/

Project E02

Papers

• Zhenyu Xiao, Tomi Ohtsuki, Kohei Kawabata, "Universal Stochastic Equations of Monitored Quantum Dynamics", Phys. Rev. Lett., 134, , 140401, 2025/04/07, https://doi.org/10.1103/PhysRevLett.134.140401
• Zhenyu Xiao, Tomi Ohtsuki, Kohei Kawabata, "Universal Stochastic Equations of Monitored Quantum Dynamics", Phys. Rev. Lett., 134, 14, 140401, 2025/04/07, https://doi.org/10.1103/PhysRevLett.134.140401
• Masahiro Hoshino, Masaki Oshikawa, Yuto Ashida, "Entanglement swapping in critical quantum spin chains", Phys. Rev. B, 111, , 155143, 2025/4/24, https://doi.org/10.1103/PhysRevB.111.155143
• Jan T. Schneider, Atsushi Ueda, Yifan Liu, Andreas M. Läuchli, Masaki Oshikawa, Luca Tagliacozzo, "Self-congruent point in critical matrix product states: An effective field theory for finite-entanglement scaling", SciPost Phys., 18, , 142, 2025/04/29, 10.21468/SciPostPhys.18.4.142
• H. Tajima, Y. Nambu, "Stochastic inflation and entropy bound in de Sitter spacetime", Phys. Rev. D, 111, , 106009, 2025/5/1, 10.1103/PhysRevD.111.106009
• G. Yoshimura, Y. Osawa, Y. Nambu, "Acceleration-induced radiation from a qudit particle detector model", Phys. Rev. D, 111, , 105012, 2025/5/14, 10.1103/PhysRevD.111.105012
• T. Shimokawa, S. Sabharwal, N. Shannon, "Can experimentally-accessible measures of entanglement distinguish quantum spin liquids from disorder-driven 'random singlet'' phases ?", arXiv, , , 2505.11874, 2025/5/17, https://doi.org/10.48550/arXiv.2505.11874
• Anish Kulkarni, Kohei Kawabata, Shinsei Ryu, "Non-linear sigma models for non-Hermitian random matrices in symmetry classes AI† and AII†", J. Phys. A: Math. Theor., 58, , 225202, 2025/05/27, 10.1088/1751-8121/adc95f
• Anish Kulkarni, Kohei Kawabata, Shinsei Ryu, "Non-linear sigma models for non-Hermitian random matrices in symmetry classes AI† and AII†", J. Phys. A, 58, 22, 225202, 2025/05/27, 10.1088/1751-8121/adc95f
• Hiroki Takeda, Takahiro Tanaka, "Quantum decoherence of gravitational waves", Phys. Rev. D, 111, 10, , 2025/05/27, 10.1103/PhysRevD.111.104080
• Sugumi Kanno, Hiroki Matsui, Shinji Mukohyama, "Hanbury-Brown-Twiss interferometry and quantum nature of primordial gravitational waves in Hořava-Lifshitz gravity", Phys. Rev. D, 111, , 104077, 2025/05/27, 10.1103/PhysRevD.111.104077
• Danilo Artigas, Shi Pi, Takahiro Tanaka, "Extended δN Formalism: Nonspatially Flat Separate-Universe Approach", Phys. Rev. Lett., 134, , 221001, 2025/06/03, 10.1103/PhysRevLett.134.221001
• Xinyu Liu, Alexander McDonald, Tokiro Numasawa, Biao Lian, Shinsei Ryu, "Inhomogeneous Quantum Quenches of Conformal Field Theory with Boundaries", Phys. Rev. Lett., 134, , 220404, 2025/6/5, https://doi.org/10.1103/PhysRevLett.134.220404
• Yu Hamada, Yuta Hamada, Hayate Kimura, "Black String in the Standard Model", Phys. Rev. D, 111, , 125009, 2025/06/13, 10.1103/x3sh-45j7
• S. Sabharwal, T. Shimokawa, N. Shannon, "Witnessing Disorder in Quantum Magnets", Phys. Rev. Research, 7, , 23271, 2025/6/17, https://doi.org/10.1103/95fl-rxl3
• M. Matsuda, A. I. Kolesnikov, Z. Honda, T. Shimokawa, S. Inoue, Y. Narumi, M. Hagiwara, "Magnetic excitations from the hexagonal spin clusters in the S = 1/2 distorted honeycomb lattice antiferromagnet Cu2(pymca)3(ClO4)", Phys. Rev. B, 111, , 224430, 2025/6/30, https://doi.org/10.1103/yj3j-tyfq
• Takahiro Tanaka, Yuko Urakawa, "gδN formalism", JCAP, 7, , 45, 2025/07/15, 10.1088/1475-7516/2025/07/045
• Haruki Shimizu, Kohei Kawabata, "Complex entanglement entropy for complex conformal field theory", Phys. Rev. B, 112, , 085112, 2025/08/08, https://doi.org/10.1103/n578-ljd5
• Haruki Shimizu, Kohei Kawabata, "Complex entanglement entropy for complex conformal field theory", Phys. Rev. B, 112, 8, 085112, 2025/08/08, https://doi.org/10.1103/n578-ljd5
• Daichi Nakamura, Kohei Kawabata, "Non-Hermitian Hopf insulators", Phys. Rev. B, 112, , 075134, 2025/08/18, https://doi.org/10.1103/ygz9-xjyx
• Daichi Nakamura, Kohei Kawabata, "Non-Hermitian Hopf insulators", Phys. Rev. B, 112, 7, 075134, 2025/08/18, https://doi.org/10.1103/ygz9-xjyx
• Daichi Nakamura, Ken Shiozaki, Kenji Shimomura, Masatoshi Sato, Kohei Kawabata, "Non-Hermitian Origin of Wannier Localizability and Detachable Topological Boundary States", Phys. Rev. Lett., 135, , 096601, 2025/08/26, https://doi.org/10.1103/q4nh-m1jh
• Ken Shiozaki, Daichi Nakamura, Kenji Shimomura, Masatoshi Sato, Kohei Kawabata, "K-theory classification of Wannier localizability and detachable topological boundary states", Phys. Rev. B, 112, , 075152, 2025/08/26, https://doi.org/10.1103/hjs9-trrs
• Daichi Nakamura, Ken Shiozaki, Kenji Shimomura, Masatoshi Sato, Kohei Kawabata, "Non-Hermitian Origin of Detachable Boundary States in Topological Insulators", Phys. Rev. Lett., 135, 9, 096601, 2025/08/26, https://doi.org/10.1103/q4nh-m1jh
• Ken Shiozaki, Daichi Nakamura, Kenji Shimomura, Masatoshi Sato, Kohei Kawabata, "K-theory classification of Wannier localizability and detachable topological boundary states", Phys. Rev. B, 112, 7, 075152, 2025/08/26, https://doi.org/10.1103/hjs9-trrs
• Shuxin Lin, Rimi Banerjee, Zheyu Cheng, Kohei Kawabata, Baile Zhang, Y. D. Chong, "Continuum Landau surface states in a non-Hermitian Weyl semimetal", arXiv, , , 2509.05138, 2025/09/05, https://doi.org/10.48550/arXiv.2509.05138
• Sugumi Kanno, Jiro Soda, Akira Taniguchi, "Parity violation in photon quasinormal modes of black holes", Phys. Rev. D, 112, , 63525, 2025/09/15, 10.1103/mnw1-nlpr
• Kohei Kawabata, Daichi Nakamura, "Hopf Bifurcation of Nonlinear Non-Hermitian Skin Effect", Phys. Rev. Lett., 135, , 126610, 2025/09/18, https://doi.org/10.1103/vxgf-59xt
• Kohei Kawabata, Daichi Nakamura, "Hopf Bifurcation of Nonlinear Non-Hermitian Skin Effect", Phys. Rev. Lett., 135, 12, 126610, 2025/09/18, https://doi.org/10.1103/vxgf-59xt
• Bastien Lapierre, Tokiro Numasawa, Titus Neupert, Shinsei Ryu, "Floquet engineered inhomogeneous quantum chaos in critical systems", Phys. Rev. B, 112, , 104317, 2025/9/22, https://doi.org/10.1103/cn3z-vfgr
• R. Kaneko, S. Goto, "Seeding neural network quantum states with tensor network states", Physical Review B, 112, 15, 155163, 2025/10/27, 10.1103/3rq4-2m5k
• Taiki Ikeda, Youka Kaku, Sugumi Kanno, Jiro Soda, "Toward graviton detection via photon-graviton quantum state conversion", Phys. Rev. D, 112, , 103504, 2025/11/03, 10.1103/kxs5-yp85
• Yuma S. Furuta, Yuta Hamada, Kazunori Kohri, "Inflation models selected by the swampland distance conjecture with the Lyth bound", Phys. Rev. D, 112, , 103517, 2025/11/12, 10.1103/lpd1-mbmm
• Takafumi Kakehi, Hidetoshi Omiya, Takuya Takahashi, Takahiro Tanaka, "Resonant DM scattering in the Galactic Center under the influence of extreme mass ratio inspirals", Phys. Rev. D, 112, 10, 104061, 2025/11/21, 10.1103/l9dn-5s25
• Antonino Flachi, Takahiro Tanaka, "Quantum Droplets in Curved Space", Phys. Rev. Lett., 135, 23, 231601, 2025/12/01, 10.1103/145z-6dnb
• Yutaro Tanaka, Daichi Nakamura, Ryo Okugawa, Kohei Kawabata, "Exceptional Second-Order Topological Insulators", Phys. Rev. B, 112, , 245302, 2025/12/03, https://doi.org/10.1103/6dhc-34vj
• Yutaro Tanaka, Daichi Nakamura, Ryo Okugawa, Kohei Kawabata, "Exceptional second-order topological insulators", Phys. Rev. B, 112, 24, 245302, 2025/12/03, https://doi.org/10.1103/6dhc-34vj
• Yu Miyauchi, Takahiro Tanaka, "The possibility of formation of compact boson stars via cosmological evolution of a background scalar field", JCAP, 12, , 3, 2025/12/03, 10.1088/1475-7516/2025/12/003
• G. Budiutama, S. Daimon, H. Nishi, R. Kaneko, T. Ohtsuki, Y-i. Matsushita, "Adaptive Interpolating Quantum Transform: A Quantum-Native Framework for Efficient Transform Learning", Physical Review A, 112, 6, 62410, 2025/12/5, 10.1103/vyr3-h9hq
• Kimihiro Nomura, Hidetoshi Omiya, Takahiro Tanaka, "Signature of polarized ultralight vector dark matter in pulsar timing arrays", Phys. Rev. D, 112, 12, 123524, 2025/12/12, 10.1103/sp5q-vkrg
• Takanori Anegawa, Kotaro Tamaoka, "Holographic Absolutely Maximally Entangled States in Black Hole Interiors", Phys. Rev. Lett., 135, , 261601, 2025/12, 10.1103/w7nc-l9s5
• Yuta Hamada, Kyohei Mukaida, Fumio Uchida, "Symmetries of hot SM, magnetic flux baryogenesis from helicity decay", JHEP, 1, , 40, 2026/1/5, 10.1007/JHEP01(2026)040
• Taiki Ikeda, Sugumi Kanno, Jiro Soda, "Enhancing photon-axion conversion probability with squeezed coherent states", Phys. Rev. D, 113, , 23539, 2026/01/23, 10.1103/c741-bwvs
• Y. Hamada, A. Ishige, Y. Koga, "More on 8D nonsupersymmetric branes and heterotic strings", Phys. Rev. D, 113, , 46012, 2026/2/15, https://journals.aps.org/prd/abstract/10.1103/yb7p-425g
• Sugumi Kanno, Jiro Soda, Akira Taniguchi, "Coherent State Description of Gravitational Waves from Binary Black Holes", Phys. Rev. Lett., 136, , 61404, 2026/02/16, 10.1103/kv1t-j27m
• Y. Osawa, Y. Nambu, R. Yoshimoto, "Entanglement Harvesting from Quantum Field: Insights via the Partner Formula", Phys. Rev. D, 113, , 45023, 2026/2/24, 10.1103/6pz9-93h5
• Masahiro Hoshino, Masaki Oshikawa, Yuto Ashida, "Stabilizer Rényi Entropy and Conformal Field Theory", PRX, 16, , 11037, 2026/02/25, https://doi.org/10.1103/ylsz-dm3y
• Pablo Sala, Frank Pollmann, Masaki Oshikawa, Yizhi You, "Entanglement holography in quantum phases via twisted Rényi-N correlators", Quantum Sci. Technol., 11, , 25017, 2026/03/11, 10.1088/2058-9565/ae4923
• H. Fukuda, Y. Hamada, K. Kamada, K. Mukaida, F. Uchida, "Magnetic Helicity, Magnetic Monopoles, and Higgs Winding", JHEP, 3, , 127, 2026/3/13, 10.1007/JHEP03(2026)127
• Yasuhiro Tada, Masaki Oshikawa, "Projectification of point group symmetries with a background flux and the Lieb-Schultz-Mattis theorem", Phys. Rev. B, 113, , 94439, 2026/3/19, https://doi.org/10.1103/8gq5-d954
• Jack Lewis, Takafumi Kakehi, Adam Pound, Takahiro Tanaka, "Postadiabatic dynamics and waveform generation in self-force theory: An invariant pseudo-Hamiltonian framework", Phys. Rev. D, 113, , 64046, 2026/03/24, 10.1103/jllr-kl86
• Naomichi Hatano, Hosho Katsura, Kohei Kawabata, "Quantum transport on Bethe lattices with non-Hermitian sources and a drain", Journal of Physics A: Mathematical and Theoretical, , , 2409.01873, 2026/04/09, 10.1088/1751-8121/ae5d23

Presentations

• T. Shimokawa, "Can experimentally-accessible measures of entanglement distinguish quantum spin liquid and random singlet phases?", Korea Advanced Institute of Science and Technology, 2025/04/29, KAIST, Daejeon, Korea
• T. Shimokawa, S. Sabharwal and N. Shannon, "Quantum criticality and multipartite entanglement via finite-temperature spin dynamics", International Conference on Highly Frustrated Magnetism 2025, 2025/05/26, University of Toronto, Toronto, Canada
• T. Kaneko, "超伝導物質の波動関数の生成", Symposium on AI and Physics: From Learning Physics to Generative Science, 2025/06, Kyoto University, Kyoto, Japan
• Y. Sui and S. Furukawa, "System-environment entanglement phase transitions for open boundary conditions", The 4th Young Researchers' Workshop of the Extreme Universe Collaboration, 2025/06, Kyukamura Irago, Aichi, Japan
• M. Hamada and S. Furukawa, "Topological entanglement swapping in spin-ladder systems", The 4th Young Researchers' Workshop of the Extreme Universe Collaboration, 2025/06, Kyukamura Irago, Aichi, Japan
• Y. Hamada, "Electroweak phase transition and cosmological magnetic field from a symmetry perspective", International Symposium on Cosmology and Particle Astrophysics 2025 (CosPA 2025), 2025/07, IBS, Daejeon, Korea
• T. Kaneko, "テンソルネットワークによる量子系の実時間シミュレーション", Tensor Network 2025, 2025/07, University of Tsukuba, Tokyo, Japan
• Y. Nambu, "量子系における古典性：量子もつれとモノガミー性", Takehara Workshop on Gravity and Cosmology, 2025/07/05, Hotel Daikōen, Takehara, Japan
• K. Kawabata, "Symmetry classification of non-Hermitian random matrices and open quantum systems", Quantum Computing, Complexity, and Control, 2025/07/29, IBS Center for Theoretical Physics of Complex Systems, Daejeon, South Korea
• Y. Hamada, "A finite 6d supergravity landscape from anomalies", The 2nd iTHEMS-NCTS Joint Workshop, 2025/08, RIKEN, Wako, Japan
• R. Kaneko, M. Imada, Y. Kabashima, and T. Ohtsuki, "Data-driven method for predicting quantum dynamics: dynamic mode decomposition approach", The 30th International Conference on Low Temperature Physics (LT30), 2025/08, Bilbao Exhibition Centre, Bilbao, Spain
• T. Shimokawa, S. Sabharwal and N. Shannon, "Quantum criticality and multipartite entanglement via finite-temperature spin dynamics", 30th International Conference on Low Temperature Physics, 2025/08/08, Bilbao Convention Centre, Bilbao, Spain
• K. Kawabata, "Symmetry and topology of monitored quantum dynamics", Physics of Open Systems: Resonance, Symmetry and Topology, 2025/08/08, Institute for Solid State Physics & Institute of Industrial Science, University of Tokyo, Chiba, Japan
• K. Kawabata, "量子測定下の非ユニタリーダイナミクスの対称性とトポロジー", Quantum Field Theory at Finite Temperature and Its Applications, 2025/08/08, Institute for Solid State Physics, University of Tokyo, Chiba, Japan
• M. Hamada and S. Furukawa, "Topological entanglement swapping in spin-ladder systems", SQAI-NCTS Workshop on Quantum Technologies and Machine Learning, 2025/08, National Taiwan University, Taipei, Taiwan
• S. Furukawa, "測定による多体状態の量子もつれ制御と相転移", 6th General Meeting of the Sustainable Quantum AI Research Hub, 2025/09, RIKEN Center for Computational Science (R-CCS), Kobe, Japan
• Y. Hamada, "Swamplandy physics", Mini Workshop on New Ideas in Particle Physics and Cosmology, 2025/09, Yukawa Institute for Theoretical Physics, Kyoto, Japan
• T. Kaneko and M. Imada, "多変数変分モンテカルロ法による三層系銅酸化物超伝導体の圧力依存性の解析", Physical Society of Japan Autumn Meeting 2025, 2025/09, Hiroshima University, Higashi-Hiroshima, Japan
• T. Shimokawa, "What can we learn about quantum magnets from experimentally accessible measures of entanglement?", YITP Workshop “Exploration of Highly Entangled Quantum Phases”, 2025/09/03, YITP, Kyoto, Japan
• S. Furukawa, "Symmetry-protected topological phases and entanglement swapping in spin-1/2 ladder systems", YITP Workshop “Exploration of Highly Entangled Quantum Phases”, 2025/09, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan
• T. Shimokawa, S. Sabharwal and N. Shannon, "Quantum criticality and multipartite entanglement via finite-temperature spin dynamics", Physical Society of Japan 80th Annual Meeting, 2025/09/16, Hiroshima University, Hiroshima, Japan
• Y. Nambu, "理論研における教育と研究", YITP Workshop “Research and Education at Hiroshima Theory Group”, 2025/09/24, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan
• M. Hamada and S. Furukawa, "Topological entanglement swapping in spin-ladder systems", International Workshop: Extreme Universe 2025, 2025/10, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan
• Y. Sui and S. Furukawa, "System-environment entanglement phase transitions for open boundary conditions", International Workshop: Extreme Universe 2025, 2025/10, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan
• Y. Hamada, "Magnetic helicity, monopoles, and baryon asymmetry", 10th International Symposium of Quantum Beam Science, 2025/10, Ibaraki University, Mito, Japan
• R. Kaneko, "Efficient entanglement entropy computation of non-Gaussian-state dynamics in free Boson systems", International Workshop Extreme Universe 2025, 2025/10, Kyoto University, Kyoto, Japan
• T. Shimokawa, "Multipartite entanglement at finite temperature: Application to identification problems among quantum spin liquid states", 12th Fugaku Results Report Meeting, 2025/10/24, Shinagawa Grand Central Tower, Tokyo, Japan
• K. Kawabata, "Symmetry and topology of monitored quantum dynamics", Novel Perspectives in Non-Hermitian Physics: From Condensed Matter to Optical and Beyond, 2025/10/29, Asia Pacific Center for Theoretical Physics, Pohang, South Korea
• T. Kaneko, M. Imada, Y. Kabashima, and T. Ohtsuki, "量子ダイナミクス予測のためのデータ駆動型手法：動的モード分解", 19th Cross-Disciplinary Workshop on Condensed Matter Science, 2025/11, Institute for Solid State Physics, University of Tokyo, Kashiwa, Japan
• Y. Sui and S. Furukawa, "System-environment entanglement phase transitions for open boundary conditions", The 5th Extreme Universe Area Meeting, 2025/12, Hotel Isol Matsuyama, Matsuyama, Japan
• Y. Hamada, "Magnetic helicity, monopoles, and baryon asymmetry", 6th International Joint Workshop on the Standard Model and Beyond, 2025/12, NCTS, Taipei, Taiwan
• R. Kaneko, "Studies on Superconductivity in Carrier-Doped Cuprates by Solving Ab Initio Low-Energy Effective Hamiltonians", The International Symposium on Superconductivity (ISS2025), 2025/12, Dejima Messe Nagasaki, Nagasaki, Japan
• K. Kawabata, "Symmetry and topology of monitored quantum dynamics", Beyond Linearity: Frontiers in Non-Hermitian Many-Body Physics, 2025/12/15, Ettore Majorana Foundation and Centre for Scientific Culture, Erice, Italy
• Y. Nambu, "Physics of quantum entanglement in curved spacetimes: application of partner formula", The 5th Extreme Universe Area Meeting, 2025/12/28, Hotel Isol Matsuyama, Matsuyama, Japan

Articles for General Public

• Y. Nambu, "量子と宇宙", 数理科学, 2025/07, サイエンス社
• T. Kaneko, "超伝導物質の波動関数の生成", 数理科学, 2025/12, サイエンス社
• Y. Sugano, "量子情報とインフレーション〜原始重力波の量子性〜", 数理科学, 2026/01/20, サイエンス社

Workshop Organizations

• ISSP Workshop: Topology, Entanglement, and Dynamics in Quantum Many-Body Systems (TEDQMB), Organizer, K. Kawabata, Institute for Solid State Physics, The University of Tokyo, Institute for Solid State Physics, The University of Tokyo, Kashiwa, Japan, 2025/12/22

Outreach

• T. Anegawa and K. Tamaoka, 2026/01/30, "ブラックホールの中は究極にもつれた情報の集まり-ブラックホール内部を記述する量子状態を理論的に発見-"
• Y. Sugano, J. Hayata and A. Taniguchi, 2026/02/13, "連星ブラックホールからの重力波に潜む量子性～量子重力理論への第一歩～"

Awards

• K. Kawabata, "令和７年度 科学技術分野の文部科学大臣表彰 若手科学者賞", Ministry of Education, Culture, Sports, Science and Technology (MEXT), 2025/04

Project E03

Presentations

• S. Suetsugu, "Gapless Spin Liquid and Gapped Magnetization Plateau Phases in a Spin-1/2 Perfect Kagome Antiferromagnet", The 4th Conference on Physics under Synergetic Extreme Conditions, 2025/07, Swan Lake View Hotel, Beijing, China
• S. Suetsugu, "Gapless spin excitations and gapped magnetization plateau phases in a spin-1/2 perfect kagome antiferromagnet", 30th International Conference on Low Temperature Physics, 2025/08, Bilbao Exhibition Centre, Bilbao, Spain
• S. Suetsugu, "カゴメ反強磁性体における量子スピン液体と1/9磁化プラトー", Physical Society of Japan 80th Annual Meeting (Co-sponsored Symposium: Novel Quantum States Induced by Kagome Structures), 2025/09, Hiroshima University, Hiroshima, Japan
• K. Kondo, "High acceleration field with tightly focused laser wakefield acceleration for investigation of the Unruh effect", The ExU Interdisciplinary Online Seminar, 2025/05, Online
• K. Kondo, "High Field Gradient with Tightly Focused Laser Wakefield Acceleration to Investigate the Unruh Effect", 33rd Annual International Laser Physics Conference, 2025/07, Hunguest Hotel, Szeged, Hungary
• K. Kondo, "真空場と相関をもつウンルー効果の実験的検証", JST FOREST Program 4th Fusion Meeting, 2025/07, Tokyo International Forum, Tokyo, Japan
• K. Kondo, "Tightly focused laser wake field acceleration to generate high field gradient for verification of the Unruh effect", 13th International Conference on Inertial Fusion Sciences and Applications (IFSA2025), 2025/09, Tours Congress Center, Tours, France
• Y. Sogawa, "Toward Measuring Entanglement Using a Programmable Cold-Atom Quantum Simulator", YITP Workshop “Exploration of Highly Entangled Quantum Phases”, 2025/09, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan

Awards

• S. Suetsugu, "第20回日本物理学会若手奨励賞(領域3)", The Physical Society of Japan, 2025/11