2025
*Soma Onoda, Osamu Fukushima, Ryusuke Hamazaki, and Okuto Morikawa,
Eigenstate Thermalization Hypothesis with Projective Representation,
*Shoki Sugimoto, Takahiro Sagawa, and Ryusuke Hamazaki
Optimal Work Extraction from Finite-Time Closed Quantum Dynamics,
*Kohei Yoshimura and Ryusuke Hamazaki,
Quasiprobability Thermodynamic Uncertainty Relation,
*Mamiko Tatsuta, Yuichiro Matsuzaki, Hiroki Kuji, Ryusuke Hamazaki, and Akira Shimizu,
Characterization and generation of a SQL-beating cat-like state through repetitive measurements,
*Barbara Roos, Shoki Sugimoto, Stefan Teufel, Roderich Tumulka, and Cornelia Vogel,
Macroscopic Thermalization for Highly Degenerate Hamiltonians After Slight Perturbation,
Journal of Statistical Physics, Volume 192, article number 109, (2025) [arXiv:2408.15832]
*Ken Mochizuki and Ryusuke Hamazaki,
Transitions of the Lyapunov spectrum and entanglement entropy in monitored quantum dynamics with homogeneous unitary,
Journal of Physics A: Mathematical and Theoretical, Volume 58, Number 26 [arXiv:2503.20217]
Invited paper for Special Issue on Open Quantum Thermodynamics
*Hisanori Oshima, Ken Mochizuki, Ryusuke Hamazaki, and Yohei Fuji,
Topology and Spectrum in Measurement-Induced Phase Transitions,
Phys. Rev. Lett. 134, 240401 (2025) [arXiv:2412.11097]
プレスリリース「量子測定が誘起するトポロジカル相のバルクエッジ対応」
日本経済新聞でも取り上げていただきました。
*Kazuki Yamamoto and Ryusuke Hamazaki,
Measurement-Induced Crossover of Quantum Jump Statistics in Postselection-Free Many-Body Dynamics,
*Yuuya Chiba,
Proof of absence of local conserved quantities in two- and higher-dimensional quantum Ising models,
Phys. Rev. B 111, 195130 (2025) [arXiv:2412.18903]
*Yuta Sekino, Yuya Ominato, Hiroyuki Tajima, Shun Uchino, and Mamoru Matsuo,
Thermomagnetic anomalies in quantum magnon transport caused by tunable junction geometries in cold atomic systems
Phys. Rev. A 111, 033312 (2025). [arXiv:2412.10147]
*Ken Mochizuki and Ryusuke Hamazaki,
Measurement-Induced Spectral Transition,
Phys. Rev. Lett. 134, 010410 (2025). [arXiv:2406.18234]
プレスリリース「量子観測に誘起されたスペクトル相転移の発見 －平衡系と非平衡系との非自明な類似点－」
日本経済新聞でも取り上げていただきました。
2024
*Ryusuke Hamazaki
Speed limits to fluctuation dynamics,
Communications Physics volume 7, Article number: 361 (2024). [arXiv:2309.07301]
*Akihiro Hokkyo, Mizuki Yamaguchi, and Yuuya Chiba,
Proof of the absence of local conserved quantities in the spin-1 bilinear-biquadratic chain and its anisotropic extensions,
*Mizuki Yamaguchi, Yuuya Chiba, and Naoto Shiraishi,
Proof of the absence of local conserved quantities in general spin-1/2 chains with symmetric nearest-neighbor interaction,
*Mizuki Yamaguchi, Yuuya Chiba, and Naoto Shiraishi,
Complete Classification of Integrability and Non-integrability for Spin-1/2 Chain with Symmetric Nearest-Neighbor Interaction,
*Yuuya Chiba and Yasushi Yoneta,
Exact Thermal Eigenstates of Nonintegrable Spin Chains at Infinite Temperature,
Phys. Rev. Lett. 133, 170404 (2024).
*Yuta Sekino, Yuya Ominato, Hiroyuki Tajima, Shun Uchino, and Mamoru Matsuo,
Thermomagnetic Anomalies by Magnonic Criticality in Ultracold Atomic Transport,
Phys. Rev. Lett. 133, 163402 (2024). [arXiv:2312.04280]
プレスリリース「極低温の原子気体で作る持続的な磁気の流れを発見 －次世代磁気メモリ開発用の量子シミュレーター実現へ－」
*濱崎立資
「開放量子多体系の非平衡統計力学」,
*Shraddha Sharma, Tanay Nag, Atanu Rajak, Souvik Bandyopadhyay, Sourav Bhattacharjee, Somnath Maity, and Utso Bhattacharya
Unquenched—a memoir on non-equilibrium dynamics of quantum many-body systems: honoring Amit Dutta
The European Physical Journal B Volume 97, article number 102, (2024)
*Hiroyuki Tajima, Yuta Sekino, Daisuke Inotani, Akira Dohi, Shigehiro Nagataki, and Tomoya Hayata,
Non-Hermitian 𝑝-wave superfluid and effects of the inelastic three-body loss in a one-dimensional spin-polarized Fermi gas,
Phys. Rev. Research 6, 023060 (2024).
*Somnath Maity and Ryusuke Hamazaki,
Kinetically constrained models constructed from dissipative quantum dynamics,
Phys. Rev. B 110, 014301 (2024). [arXiv:2403.12548]
*Kohei Yajima, Hisanori Oshima, Ken Mochizuki, and Yohei Fuji,
Multifractality in monitored single-particle dynamics,
Phys. Rev. Research 6, 043049 (2024). [arXiv:2406.02386]
*Taro Sawada, Kazuki Sone, Ryusuke Hamazaki, Yuto Ashida, and Takahiro Sagawa,
Role of Topology in Relaxation of One-Dimensional Stochastic Processes,
Phys. Rev. Lett. 132, 046602 (2024). [arXiv:2301.09832]
プレスリリース「確率的ダイナミクスの緩和におけるトポロジーの効果を解明 －古典系のトポロジカルな設計原理の解明に向けて－」
日本経済新聞でも取り上げていただきました。
*Ryusuke Hamazaki,
Quantum Velocity Limits for Multiple Observables: Conservation Laws, Correlations, and Macroscopic Systems
Phys. Rev. Research 6, 013018 (2024). [arXiv:2305.03190]
*Ken Mochizuki and Ryusuke Hamazaki,
Absorption to Fluctuating Bunching States in Non-Unitary Boson Dynamics,
Phys. Rev. Research 6, 013004 (2024). [arXiv:2308.04716]
2023
*Taiki Haga, Masaya Nakagawa, Ryusuke Hamazaki, and Masahito Ueda,
Quasiparticles of Decoherence Processes in Open Quantum Many-Body Systems: Incoherentons,
Phys. Rev. Research 5, 043225 (2023). [arXiv:2211.14991]
*Hiroyuki Tajima, Hiroshi Funaki, Yuta Sekino, Nobutoshi Yasutake, and Mamoru Matsuo,
Exploring 3P0 superfluid in dilute spin-polarized neutron matter,
Phys. Rev. C 108, L052802 [Letter] (2023).
*Osamu Fukushima and Ryusuke Hamazaki,
Violation of Eigenstate Thermalization Hypothesis in Quantum Field Theories with Higher-Form Symmetry,
Phys. Rev. Lett. 131, 131602 (2023). [arXiv:2305.04984]
*Kazuki Yamamoto and Ryusuke Hamazaki,
Localization Properties in Disordered Quantum Many-Body Dynamics under Continuous Measurement,
Phys. Rev. B 197, L220201 [Letter] (2023). [arXiv:2301.07290]
*Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda,
Rigorous Bounds on Eigenstate Thermalization,
*Ken Mochizuki and Ryusuke Hamazaki,
Distinguishability transitions in nonunitary boson-sampling dynamics,
2022
*Atsuki Yoshinaga, Yuichiro Matsuzaki, and Ryusuke Hamazaki,
Quantum Metrology Protected by Hilbert Space Fragmentation,
*Zongping Gong and Ryusuke Hamazaki,
Bounds in Nonequilibrium Quantum Dynamics,
International Journal of Modern Physics B, Vol. 36, No. 31, 2230007 (2022). [arXiv:2202.02011] (invited review article)
*Kazuya Fujimoto, Ryusuke Hamazaki, and Yuki Kawaguchi,
Impact of Dissipation on Universal Fluctuation Dynamics in Open Quantum Systems,
Phys. Rev. Lett. 129, 110403 (2022). [arXiv:2202.02176]
*Atsuki Yoshinaga, Hideaki Hakoshima, Takashi Imoto, Yuichiro Matsuzaki, and Ryusuke Hamazaki,
Emergence of Hilbert Space Fragmentation in Ising Models with a Weak Transverse Field,
Phys. Rev. Lett. 129, 090602 (2022). [arXiv:2111.05586]
*Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda,
Eigenstate Thermalization in Long-Range Interacting Systems,
Phys. Rev. Lett. 129, 030602 (2022). [arXiv:2111.12484]
*Makio Kawasaki, Ken Mochizuki, and Hideaki Obuse,
Topological phases protected by shifted sublattice symmetry in dissipative quantum systems,
Phys. Rev. B 106, 035408 (2022).
*龔 宗平, 濱崎立資
岩波書店「科学」2022年6月号 (Vol.92 No.6)への寄稿論文
*Ryusuke Hamazaki, Masaya Nakagawa, Taiki Haga, and Masahito Ueda,
Lindbladian Many-Body Localization,
*Kyosuke Adachi, Ryosuke Iritani, and Ryusuke Hamazaki,
Universal constraint on nonlinear population dynamics,
Communications Physics 5, 129 (2022). [arXiv:2202.02028]
プレスリリース「進化・生態ダイナミクスの共通法則 －生物の個体群変化を物理学的な関係式で記述する－」
*Ken Mochizuki and Tomoki Ozawa,
Band structures under non-Hermitian periodic potentials: Connecting nearly-free and bi-orthogonal tight-binding models,
Phys. Rev. B 105, 174108 (2022).
*Ryusuke Hamazaki,
Speed Limits for Macroscopic Transitions,
PRX Quantum 3, 020319 (2022). [arXiv:2110:09716]
プレスリリース「巨視的な遷移における速度限界の発見 －連続の式に基づく統一的アプローチ－」
RIKEN Research Highlights に記事として取り上げていただきました。
2021
*Ryusuke Hamazaki,
Exceptional dynamical quantum phase transitions in periodically driven systems,
Nat. Commun. 12, 5108 (2021). [arXiv:2012.11822]
Selected in a collection of Quantum Many-Body Dynamics.
プレスリリース「新しいメカニズムによる動的量子相転移を発見 -反ユニタリー対称性の自発的破れ-」
*Kazuya Fujimoto, Ryusuke Hamazaki, and Yuki Kawaguchi,
Dynamical Scaling of Surface Roughness and Entanglement Entropy in Disordered Fermion Models,
Phys. Rev. Lett. 127, 090601 (2021). [arXiv:2101.08148]
プレスリリース 「乱れた量子系における粒子数揺らぎと量子もつれの成長則を発見 -コーヒーの染みの広がりとの意外なつながり-」
*藤本和也、濱崎立資、川口由紀、
孤立量子系の粒子数揺らぎに現れる界面粗さスケーリング、
日本物理学会誌, 最近の研究から, 76, 517 (2021).
*Taiki Haga, Masaya Nakagawa, Ryusuke Hamazaki, and Masahito Ueda,
Liouvillian Skin Effect: Slowing Down of Relaxation Processes without Gap Closing,
Phys. Rev. Lett. 127, 070402 (2021). [arXiv:2005.00824]
*Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda,
Test of Eigenstate Thermalization Hypothesis Based on Local Random Matrix Theory,
2020
*Yosuke Takasu, Tomoya Yagami, Yuto Ashida, Ryusuke Hamazaki, Yoshihito Kuno, and Yoshiro Takahashi,
PT-symmetric non-Hermitian quantum many-body system using ultracold atoms in an optical lattice with controlled dissipation,
Progress of Theoretical and Experimental Physics, ptaa094 (2020). [arXiv:2004.05734]
*Xiao Chai, Di Lao, Kazuya Fujimoto, Ryusuke Hamazaki, Masahito Ueda, and Chandra Raman,
Magnetic solitons in a spin-1 Bose-Einstein condensate,
Phys. Rev. Lett. 125, 030402 (2020). [arXiv:1912.06672]
*Ryusuke Hamazaki, Kohei Kawabata, Naoto Kura and Masahito Ueda,
Universality classes of non-Hermitian random matrices,
Phys. Rev. Research, 2, 023286 (2020). [arXiv:1904.13082]
*Kazuya Fujimoto, Ryusuke Hamazaki, and Yuki Kawaguchi,
Family-Vicsek Scaling of Roughness Growth in a Strongly Interacting Bose Gas,
Phys. Rev. Lett. 124, 210604 (2020). [arXiv:1911.10707]
*Zongping Gong, Nobuyuki Yoshioka, Naoyuki Shibata, and Ryusuke Hamazaki,
Universal Error Bound for Constrained Quantum Dynamics,
Phys. Rev. Lett. 124, 210606 (2020). [arXiv:2001.03419]
*Zongping Gong, Nobuyuki Yoshioka, Naoyuki Shibata, and Ryusuke Hamazaki,
Error bounds for constrained dynamics in gapped quantum systems: Rigorous results and generalizations,
Phys. Rev. A 101, 052122 (2020). [arXiv:2001.03421]
2019
*Ryusuke Hamazaki, Kohei Kawabata and Masahito Ueda,
Non-Hermitian Many-Body Localization,
Phys. Rev. Lett. 123, 090603 (2019). [arXiv:1811.11319]
*Nobuyuki Yoshioka and Ryusuke Hamazaki,
Constructing neural stationary states for open quantum many-body systems,
Phys. Rev. B 99, 214306 (2019). [arXiv:1902.07006]
*Kazuya Fujimoto, Ryusuke Hamazaki and Masahito Ueda,
Flemish Strings of Magnetic Solitons and a Non-Thermal Fixed Point in a One-Dimensional Antiferromagnetic Spin-1 Bose Gas,
Phys. Rev. Lett. 122, 173001 (2019). [arxiv:1812.03581]
*Ryusuke Hamazaki and Masahito Ueda,
Random-matrix behavior of quantum nonintegrable many-body systems with Dyson’s three symmetries,
2018
*Ryusuke Hamazaki, Kazuya Fujimoto and Masahito Ueda,
Operator Noncommutativity and Irreversibility in Quantum Chaos,
*Ryusuke Hamazaki and Masahito Ueda,
Atypicality of Most Few-Body Observables,
Phys. Rev. Lett. 120, 080603 (2018). [arxiv:1708.04772]
*Kazuya Fujimoto, Ryusuke Hamazaki and Masahito Ueda,
Unconventional Universality Class of One-Dimensional Isolated Coarsening Dynamics in a Spinor Bose Gas,
Phys. Rev. Lett. 120, 073002 (2018). [arxiv:1707.03615]
*Zongping Gong, Ryusuke Hamazaki and Masahito Ueda,
Discrete Time-Crystalline Order in Cavity and Circuit QED Systems,
2016
*Ryusuke Hamazaki, Tatsuhiko N. Ikeda and Masahito Ueda,
Generalized Gibbs ensemble in a nonintegrable system with an extensive number of local symmetries,