• "Pink-noise dynamics in an evolutionary game on a regular graph"
  Yuki Sakamoto and Masahito Ueda
  Phys. Rev. E 110, 034110 (2024)
• "Experimental Observation of the Yang-Lee Quantum Criticality in Open Quantum Systems"
  Huixia Gao, Kunkun Wang, Lei Xiao, Masaya Nakagawa, Norifumi Matsumoto, Dengke Qu, Haiqing Lin, Masahito Ueda, and Peng Xue
  Phys. Rev. Lett. 132, 176601 (2024)
• "Hermitian and non-Hermitian topology from photon-mediated interactions"
  Federico Roccati, Miguel Bello, Zongping Gong, Masahito Ueda, Francesco Ciccarello, Aurélia Chenu, and Angelo Carollo
  Nature Communications volume 15, Article number: 2400 (2024)
• "Phase crossover induced by dynamical many-body localization in periodically driven long-range spin systems"
  Mahbub Rahaman, Takashi Mori, and Analabha Roy
  Phys. Rev. B 109, 104311 (2024)
  
• "Liouvillian-gap analysis of open quantum many-body systems in the weak dissipation limit"
  Takashi Mori
  Phys. Rev. B 109, 064311 (2024)
• "Stalled response near thermal equilibrium in periodically driven systems"
  Lennart Dabelow and Peter Reimann
  Nature Communications volume 15, Article number: 294 (2024)
• "Zeroth, first, and second-order phase transitions in deep neural networks"
  Liu Ziyin and Masahito Ueda
  Phys. Rev. Research 5, 043243 (2023)
• "Quasiparticles of decoherence processes in open quantum many-body systems: Incoherentons"
  Taiki Haga, Masaya Nakagawa, Ryusuke Hamazaki, and Masahito Ueda
  Phys. Rev. Research 5, 043225 (2023)
• "Yang-Lee Zeros, Semicircle Theorem, and Nonunitary Criticality in Bardeen-Cooper-Schrieffer Superconductivity"
  Hongchao Li, Xie-Hang Yu, Masaya Nakagawa, and Masahito Ueda
  Phys. Rev. Lett. 131, 216001 (2023)
• "Accelerated Decay due to Operator Spreading in Bulk-Dissipated Quantum Systems"
  Tatsuhiko Shirai and Takashi Mori
  arXiv preprint arXiv:2309.03485 (2023)
• "Symmetrized Liouvillian Gap in Markovian Open Quantum Systems"
  Takashi Mori and Tatsuhiko Shirai
  Phys. Rev. Lett. 130, 230404 (2023)
• "Quantum and classical Floquet prethermalization"
  Wen Wei Ho, Takashi Mori, Dmitry A. Abanin and Emanuele G. Dalla Torre
  Annals of Physics, volume 454, 169297 (2023)
• "Floquet States in Open Quantum Systems"
  Takashi Mori
  Annual Review of Condensed Matter Physics, vol. 14:35-56 (2023)
• "Universal thermodynamic uncertainty relation in nonequilibrium dynamics"
  Liu Ziyin and Masahito Ueda
  Phys. Rev. Research 5, 013039 (2023)
• "Nonlinear Landauer formula: Nonlinear response theory of disordered and topological materials"
  Kohei Kawabata and Masahito Ueda
  Phys. Rev. B 106, 205104 (2022)
• "Embedding the Yang-Lee quantum criticality in open quantum systems"
  Norifumi Matsumoto, Masaya Nakagawa, and Masahito Ueda
  Phys. Rev. Research 4, 033250 (2022)
• "Three learning stages and accuracy–efficiency tradeoff of restricted Boltzmann machines"
  Lennart Dabelow and Masahito Ueda
  Nature Communications volume 13, Article number: 5474 (2022)
  
• "Eigenstate Thermalization in Long-Range Interacting Systems"
  Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda
  Phys. Rev. Lett. 129, 030602 (2022)
• "Power-Law Escape Rate of SGD"
  Takashi Mori, Liu Ziyin, Kangqiao Liu, Masahito Ueda
  Proceedings of the 39th International Conference on Machine Learning, PMLR 162:15959-15975 (2022)
• "Universal properties of dissipative Tomonaga-Luttinger liquids: Case study of a non-Hermitian XXZ spin chain"
  Kazuki Yamamoto, Masaya Nakagawa, Masaki Tezuka, Masahito Ueda, and Norio Kawakami
  Phys. Rev. B 105, 205125 (2022)
• "Vortex lattices in binary Bose–Einstein condensates: collective modes, quantum fluctuations, and intercomponent entanglement"
  Takumi Yoshino, Shunsuke Furukawa, and Masahito Ueda
  Journal of Physics B: Atomic, Molecular and Optical Physics, Volume 55, Number 10 (2022)
• "Heating Rates under Fast Periodic Driving beyond Linear Response"
  Takashi Mori
  Phys. Rev. Lett. 128, 050604 (2022)
• "Interplay between depth of neural networks and locality of target functions"
  Takashi Mori and Masahito Ueda
  arXiv:2201.12082 (2022)
• "Thermalization of locally perturbed many-body quantum systems"
  Lennart Dabelow, Patrick Vorndamme, and Peter Reimann
  Phys. Rev. B 105, 024310 (2022)
• "Quantum Dark Solitons in the 1D Bose Gas: From Single to Double Dark-Solitons"
  Kayo Kinjo, Eriko Kaminishi, Takashi Mori, Jun Sato, Rina Kanamoto and Tetsuo Deguchi
  Universe 8(1), 2 (2021)
  
• "Metastability associated with many-body explosion of eigenmode expansion coefficients"
  Takashi Mori
  Phys. Rev. Research 3, 043137 (2021)
• "Tensor network approach to thermalization in open quantum many-body systems"
  Hayate Nakano, Tatsuhiko Shirai, and Takashi Mori
  Phys. Rev. E 103, L040102 (2021)
• "Rigorous Bounds on the Heating Rate in Thue-Morse Quasiperiodically and Randomly Driven Quantum Many-Body Systems"
  Takashi Mori, Hongzheng Zhao, Florian Mintert, Johannes Knolle, and Roderich Moessner
  Phys. Rev. Lett. 127, 050602(2021)
• "Entropy production of a closed Hamiltonian system via the detailed fluctuation relation"
  Yûto Murashita, Naoto Kura, and Masahito Ueda
  Phys. Rev. Research 3, 033224 (2021)
• "Liouvillian Skin Effect: Slowing Down of Relaxation Processes without Gap Closing"
  Taiki Haga, Masaya Nakagawa, Ryusuke Hamazaki, and Masahito Ueda
  Phys. Rev. Lett. 127, 070402 (2021)
  
• "Collective Excitations and Nonequilibrium Phase Transition in Dissipative Fermionic Superfluids"
  Kazuki Yamamoto, Masaya Nakagawa, Naoto Tsuji, Masahito Ueda, and Norio Kawakami
  Phys. Rev. Lett. 127, 055301 (2021)
• "Noise and Fluctuation of Finite Learning Rate Stochastic Gradient Descent"
  Kangqiao Liu, Liu Ziyin, and Masahito Ueda
  Proceedings of the 38th International Conference on Machine Learning, PMLR 139:7045-7056, 2021 (ICML 2021)
• "Intercomponent entanglement entropy and spectrum in binary Bose-Einstein condensates"
  Takumi Yoshino, Shunsuke Furukawa, and Masahito Ueda
  Phys. Rev. A 103, 043321 (2021)
• "Test of the Eigenstate Thermalization Hypothesis Based on Local Random Matrix Theory"
  Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda
  Phys. Rev. Lett. 126, 120602 (2021)
• "Exact Liouvillian Spectrum of a One-Dimensional Dissipative Hubbard Model"
  Masaya Nakagawa, Norio Kawakami, and Masahito Ueda
  Phys. Rev. Lett. 126, 110404 (2021)
• "Non-Hermitian physics"
  Yuto Ashida, Zongping Gong, and Masahito Ueda
  Advances in Physics 69.3: 249-435 (2020)
  
• "Neural Networks Fail to Learn Periodic Functions and How to Fix It"
  Liu Ziyin, Tilman Hartwig, and Masahito Ueda
  Advances in Neural Information Processing Systems 33 (NeurIPS 2020)
• "Effective temperature of a superfluid flowing in a random potential"
  Taiki Haga and Masahito Ueda
  Phys. Rev. Research 2, 043316 (2020)
  
• "Continuous Phase Transition without Gap Closing in Non-Hermitian Quantum Many-Body Systems"
  Norifumi Matsumoto, Kohei Kawabata, Yuto Ashida, Shunsuke Furukawa, and Masahito Ueda
  Phys. Rev. Lett. 125, 260601 (2020)
  
• "Magnetic Solitons in a Spin-1 Bose-Einstein Condensate"
  Xiao Chai, Di Lao, Kazuya Fujimoto, Ryusuke Hamazaki, Masahito Ueda, and Chandra Raman
  Phys. Rev. Lett. 125, 030402 (2020)[selected as Editors' Suggestion]
  See also Synopsis: Physics 13, s90 by Christopher Crockett
  
• "Universality classes of non-Hermitian random matrices"
  Ryusuke Hamazaki, Kohei Kawabata, Naoto Kura, and Masahito Ueda
  Phys. Rev. Research 2, 023286 (2020)
• "Resolving a Discrepancy between Liouvillian Gap and Relaxation Time in Boundary-Dissipated Quantum Many-Body Systems"
  Takashi Mori and Tatsuhiko Shirai
  Phys. Rev. Lett. 125, 230604 (2020)
• "Thermodynamic Uncertainty Relation for Arbitrary Initial States"
  Kangqiao Liu, Zongping Gong, and Masahito Ueda
  Phys. Rev. Lett. 125, 140602 (2020)
• "Improved generalization by noise enhancement"
  Takashi Mori and Masahito Ueda
  arXiv preprint arXiv:2009.13094 (2020)
• "Deep Reinforcement Learning Control of Quantum Cartpoles"
  Zhikang T. Wang, Yuto Ashida, and Masahito Ueda
  Phys. Rev. Lett. 125, 100401 (2020)
• "Higgs-mode resonance in third harmonic generation in NbN superconductors: Multiband electron-phonon coupling, impurity scattering, and polarization-angle dependence"
  Naoto Tsuji and Yusuke Nomura
  Phys. Rev. Research 2, 043029 (2020)
• “Construction of quantum dark soliton in one-dimensional Bose gas”
  Eriko Kaminishi, Takashi Mori and Seiji Miyashita
  Journal of Physics B: Atomic, Molecular and Optical Physics, Volume 53, Number 9 (2020)
  
• "Thermalization in open many-body systems based on eigenstate thermalization hypothesis"
  Tatsuhiko Shirai and Takashi Mori
  Phys. Rev. E 101, 042116 (2020)
  
• "Dynamical Sign Reversal of Magnetic Correlations in Dissipative Hubbard Models"
  Masaya Nakagawa, Naoto Tsuji, Norio Kawakami, and Masahito Ueda
  Phys. Rev. Lett. 124, 147203 (2020)
  
• "Morphological Superfluid in a Nonmagnetic Spin-2 Bose-Einstein Condensate"
  Emi Yukawa and Masahito Ueda
  Phys. Rev. Lett. 124, 105301 (2020)
  
• "Standard Quantum Limit and Heisenberg Limit in Function Estimation"
  Naoto Kura and Masahito Ueda
  Phys. Rev. Lett. 124, 010507 (2020)
  
• "Symmetry and Topology in Non-Hermitian Physics"
  Kohei Kawabata, Ken Shiozaki, Masahito Ueda, and Masatoshi Sato
  Phys. Rev. X 9, 041015 (2019)
• "Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction"
  Kazuki Yamamoto, Masaya Nakagawa, Kyosuke Adachi, Kazuaki Takasan, Masahito Ueda, and Norio Kawakami
  Phys. Rev. Lett. 123, 123601 (2019)
  
• "Non-Hermitian Many-Body Localization"
  Ryusuke Hamazaki, Kohei Kawabata, and Masahito Ueda
  Phys. Rev. Lett. 123, 090603 (2019)
  
• "Floquet Chiral Magnetic Effect"
  Sho Higashikawa, Masaya Nakagawa, and Masahito Ueda
  Phys. Rev. Lett. 123, 066403 (2019)
  
• "Flemish Strings of Magnetic Solitons and a Nonthermal Fixed Point in a One-Dimensional Antiferromagnetic Spin-1 Bose Gas"
  Kazuya Fujimoto, Ryusuke Hamazaki, and Masahito Ueda 　　
  Phys. Rev. Lett. 122, 173001 (2019)
  
• "Second-Order Topological Phases in Non-Hermitian Systems"
  Tao Liu, Yu-Ran Zhang, Qing Ai, Zongping Gong, Kohei Kawabata, Masahito Ueda, and Franco Nori
  Phys. Rev. Lett. 122, 076801 (2019)
  
• "Topological unification of time-reversal and particle-hole symmetries in non-Hermitian physics"
  Kohei Kawabata, Sho Higashikawa, Zongping Gong, Yuto Ashida, and Masahito Ueda
  Nat. Commun. 10, 297 (2019) [selected as Editors' Highlights (Link)]
  
• "Non-Hermitian Kondo Effect in Ultracold Alkaline-Earth Atoms"
  Masaya Nakagawa, Norio Kawakami, and Masahito Ueda
  Phys. Rev. Lett. 121, 203001 (2018)
• "Thermalization and Heating Dynamics in Open Generic Many-Body Systems"
  Yuto Ashida, Keiji Saito, and Masahito Ueda
  Phys. Rev. Lett. 121, 170402 (2018)
• "Topological Phases of Non-Hermitian Systems"
  Zongping Gong, Yuto Ashida, Kohei Kawabata, Kazuaki Takasan, Sho Higashikawa, and Masahito Ueda
  Phys. Rev. X 8, 031079 （2018）
  See also Viewpoint: Physics 11, 96by Miguel A. Bandres and Mordechai Segev
  
• "Nonholonomy of order parameters and su(3) vortices in spin-1 Bose-Einstein condensates"
  Emi Yukawa and Masahito Ueda
  Phys. Rev. A 98, 013607 (2018)
• "Bound on the exponential growth rate of out-of-time-ordered correlators"
  Naoto Tsuji, Tomohiro Shitara, and Masahito Ueda
  Phys. Rev. E 98, 012216 (2018)
• "Full-Counting Many-Particle Dynamics: Nonlocal and Chiral Propagation of Correlations"
  Yuto Ashida and Masahito Ueda
  Phys. Rev. Lett. 120, 185301 (2018)
• "Higgs Mode in the d-Wave Superconductor Bi2Sr2CaCu2O8+x Driven by an Intense Terahertz Pulse"
  Kota Katsumi, Naoto Tsuji, Yuki I. Hamada, Ryusuke Matsunaga, John Schneeloch, Ruidan D. Zhong, Genda D. Gu, Hideo Aoki, Yann Gallais, and Ryo Shimano
  Phys. Rev. Lett. 120, 117001 (2018)
• "Quantum Szilard Engine with Attractively Interacting Bosons"
  J. Bengtsson, M. Nilsson Tengstrand, A. Wacker, P. Samuelsson, M. Ueda, H. Linke, and S. M. Reimann
  Phys. Rev. Lett. 120, 100601 (2018)
• "Unconventional Universality Class of One-Dimensional Isolated Coarsening Dynamics in a Spinor Bose Gas"
  Kazuya Fujimoto, Ryusuke Hamazaki, and Masahito Ueda
  Phys. Rev. Lett. 120, 073002 (2018)
• "Atypicality of Most Few-Body Observables"
  Ryusuke Hamazaki and Masahito Ueda
  Phys. Rev. Lett. 120, 080603 (2018)
• "Discrete Time-Crystalline Order in Cavity and Circuit QED Systems"
  Zongping Gong, Ryusuke Hamazaki, and Masahito Ueda
  Phys. Rev. Lett. 120, 040404 (2018)
  
• "Out-of-time-order fluctuation-dissipation theorem"
  Naoto Tsuji, Tomohiro Shitara and Masahito Ueda
  Phys. Rev. E 97, 012101 (2018)
  
• "Information Retrieval and Criticality in Parity-Time-Symmetric Systems"
  Kohei Kawabata, Yuto Ashida, and Masahito Ueda
  Phys. Rev. Lett. 119, 190401 (2017)
  
• "Parity-time-symmetric quantum critical phenomena"
  Yuto Ashida, Shunsuke Furukawa and Masahito Ueda
  Nature Communications 8, Article number: 15791 (2017)
  
• "Zeno Hall Effect"
  Zongping Gong, Sho Higashikawa, and Masahito Ueda
  Phys. Rev. Lett. 118, 200401 (2017)
• "Anomalous Transport in the Superfluid Fluctuation Regime"
  Shun Uchino and Masahito Ueda
  Phys. Rev. Lett. 118, 105303 (2017)
• "Universal Work Fluctuations During Shortcuts to Adiabaticity by Counterdiabatic Driving"
  Ken Funo, Jing-Ning Zhang, Cyril Chatou, Kihwan Kim, Masahito Ueda, and Adolfo del Campo
  Phys. Rev. Lett. 118, 100602 (2017)
• "Gibbs Paradox Revisited from the Fluctuation Theorem with Absolute Irreversibility"
  Yûto Murashita and Masahito Ueda
  Phys. Rev. Lett. 118, 060601 (2017)
  
• "Exact out-of-time-ordered correlation functions for an interacting lattice fermion model"
  Naoto Tsuji, Philipp Werner, and Masahito Ueda
  Phys. Rev. A 95, 011601(R) (2017)
  
• "Emergent Electromagnetic Induction and Adiabatic Charge Pumping in Noncentrosymmetric Weyl Semimetals"
  Hiroaki Ishizuka, Tomoya Hayata, Masahito Ueda, and Naoto Nagaosa
  Phys. Rev. Lett. 117, 216601 (2016)
  
• "Fermi gases: Anisotropic universality"
  Masahito Ueda
  Nature Physics (2016)
  
• "Work Fluctuation-Dissipation Trade-Off in Heat Engines"
  Ken Funo and Masahito Ueda
  Phys. Rev. Lett. 115, 260601 (2015)
  
• "Entanglement pre-thermalization in a one-dimensional Bose gas"
  Eriko Kaminishi, Takashi Mori, Tatsuhiko N. Ikeda and Masahito Ueda
  Nature Physics, 11, 1050-1056 (2015)
  
• "Universal High-Momentum Asymptote and Thermodynamic Relations in a Spinless Fermi Gas with a Resonant p-Wave Interaction"
  Shuhei M. Yoshida and Masahito Ueda
  Phys. Rev. Lett., 115, 135303 (2015)
  
• "Controlling and probing non-abelian emergent gauge potentials in spinor Bose-Fermi mixtures"
  Nguyen Thanh Phuc, Gen Tatara, Yuki Kawaguchi and Masahito Ueda
  Nature Communications 6, 8135 (2015)
  
• "Diffraction-Unlimited Position Measurement of Ultracold Atoms in an Optical Lattice"
  Yuto Ashida and Masahito Ueda
  Phys. Rev. Lett. 115, 095301 (2015)
  
• "Onset of a Limit Cycle and Universal Three-Body Parameter in Efimov Physics"
  Yusuke Horinouchi and Masahito Ueda
  Phys. Rev. Lett. 114, 025301 (2015)
• "Quantum Mass Acquisition in Spinor Bose-Einstein Condensates"
  Nguyen Thanh Phuc, Yuki Kawaguchi, and Masahito Ueda
  Phys. Rev. Lett. 113, 230401 (2014)
  

研究紹介記事

• 2017年7月14日 RIKEN RESEARCH
  Physicists solve ETH Zurich quantum point contact mystery
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• 2015年11月27日 RIKEN RESEARCH
  A sensitive approach to atom counting
  Measurements of scattered photons can be used to detect the number of atoms trapped in the troughs of an
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• 2015年3月20日 RIKEN RESEARCH
  The universal nature of three-body attraction
  A study of the interaction among three objects in peculiar resonant systems uncovers an unexpected universality
  
  
• 2015年01月23日 RIKEN RESEARCH
  Particles find their mass
  Simulations indicate that a peculiar state of matter at close to absolute zero could be used to observe an elusive
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主要論文