MASAHITO UEDA
Department of Physics, The University of Tokyo


  2020年
  2019年
  • Deep Gamblers: Learning to Abstain with Portfolio Theory
    Ziyin Liu, Zhikang Wang, Paul Pu Liang, Russ R. Salakhutdinov, Louis-Philippe Morency and Masahito Ueda
    Neural Information Processing Systems,10622-10632 (2019)

  • Observation of Critical Phenomena in Parity-Time-Symmetric Quantum Dynamics
    Lei Xiao, Kunkun Wang, Xiang Zhan, Zhihao Bian, Kohei Kawabata, Masahito Ueda, Wei Yi, and Peng Xue
    Phys. Rev. Lett. 123, 230401 (2019)

  • Symmetry and Topology in Non-Hermitian Physics
    Kohei Kawabata, Ken Shiozaki, Masahito Ueda, and Masatoshi Sato
    Phys. Rev. X9, 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)

  • Constructing neural stationary states for open quantum many-body systems
    Nobuyuki Yoshioka and Ryusuke Hamazaki
    Phys. Rev. B99, 214306 (2019) [selected as Editors' Suggestion]
    See also Viewpoint: Physics 12, 74 by Maria Schuld, Ilya Sinayskiy, and Francesco Petruccione

  • Random-matrix behavior of quantum nonintegrable many-body systems with Dyson's three symmetries
    Ryusuke Hamazaki and Masahito Ueda
    Phys. Rev. E 99, 042116 (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)]

  • Collective modes of vortex lattices in two-component Bose–Einstein condensates under synthetic gauge fields
    Takumi Yoshino, Shunsuke Furukawa, Sho Higashikawa, and Masahito Ueda
    New J. Phys. 21, 015001 (2019)


  2018年
  • Topological entanglement-spectrum crossing in quench dynamics
    Zongping Gong and Masahito Ueda
    Phys. Rev. Lett.121, 250601 (2018)

  • Few-body states of bosons interacting with a heavy quantum impurity
    Shuhei M. Yoshida, Zhe-Yu Shi, Jesper Levinsen, and Meera M. Parish
    Phys. Rev. A98, 062705 (2018)

  • Impurity-Induced Multibody Resonances in a Bose Gas
    Zhe-Yu Shi, Shuhei M. Yoshida, Meera M. Parish, and Jesper Levinsen
    Phys. Rev. Lett.121, 243401 (2018)

  • Non-Hermitian Kondo Effect in Ultracold Alkaline-Earth Atoms
    Masaya Nakagawa, Norio Kawakami, and Masahito Ueda
    Phys. Rev. Lett.121, 203001 (2018)

  • Anomalous helical edge states in a non-Hermitian Chern insulator
    Kohei Kawabata, Ken Shiozaki, and Masahito Ueda
    Phys. Rev. B98, 165148 (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, 96 by Miguel A. Bandres and Mordechai Segev

  • Parity-time-symmetric topological superconductor
    Kohei Kawabata, Yuto Ashida, Hosho Katsura, and Masahito Ueda
    Phys. Rev. B98, 085116 (2018) [selected as Editors' Suggestion]

  • Bound on the exponential growth rate of out-of-time-ordered correlators
    Naoto Tsuji, Tomohiro Shitara, and Masahito Ueda
    Phys. Rev. E98, 012216 (2018)

  • Variational principle for quantum impurity systems in and out of equilibrium: Application to Kondo problems
    Yuto Ashida, Tao Shi, Mari Carmen Banuls, J. Ignacio Cirac and Eugene Demler
    Phys. Rev. B98, 024103 (2018),

  • Nonholonomy of order parameters and su(3) vortices in spin-1 Bose-Einstein condensates
    Emi Yukawa and Masahito Ueda
    Phys. Rev. A 98, 013607

  • Solving Quantum Impurity Problems in and out of Equilibrium with the Variational Approach
    Yuto Ashida, Tao Shi, Mari Carmen Banuls, J. Ignacio Cirac and Eugene Demler
    Phys. Rev. Lett.121, 026805 (2018).

  • Many-body spin Hall effect with space-inversion symmetry
    Nguyen Thanh Phuc and Masahito Ueda
    Phys. Rev. A 97, 061608(R) (2018)

  • Full-Counting Many-Particle Dynamics: Nonlocal and Chiral Propagation of Correlations
    Yuto Ashida and Masahito Ueda
    Phys. Rev. Lett.120, 185301 (2018)

  • Information-to-work conversion by Maxwell's demon in a superconducting circuit quantum electrodynamical system
    Y. Masuyama, K. Funo, Y. Murashita, A. Noguchi, S. Kono, Y. Tabuchi, R. Yamazaki, M. Ueda, and Y. Nakamura
    Nat. Commun.9, 1291 (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)

  • Atypicality of Most Few-Body Observables
    Ryusuke Hamazaki and Masahito Ueda
    Phys. Rev. Lett.120, 080603 (2018)

  • Many-body interferometry of magnetic polaron dynamics
    Yuto Ashida, Richard Schmidt, Leticia Tarruell, and Eugene Demler
    Phys. Rev. B97, 060302(R) (2018)
    See also Research highlight in Nature Physics.

  • Unconventional Universality Class of One-Dimensional Isolated Coarsening Dynamics in a Spinor Bose Gas
    Kazuya Fujimoto, Ryusuke Hamazaki, Masahito Ueda
    Phys. Rev. Lett.120, 073002 (2018)

  • Universality of an Impurity in a Bose-Einstein Condensate
    Shuhei M. Yoshida, Shimpei Endo, Jesper Levinsen, and Meera M. Parish
    Phys. Rev. X8, 011024 (2018)

  • Discrete Time-Crystalline Order in Cavity and Circuit QED Systems
    Zongping Gong, Ryusuke Hamazaki, and Masahito Ueda
    Phys. Rev. Lett.120, 040404 (2018)

  • Entanglement prethermalization in the Tomonaga-Luttinger model
    Eriko Kaminishi, Takashi Mori, Tatsuhiko N. Ikeda, and Masahito Ueda
    Phys. Rev. A97, 013622 (2018)

  • Out-of-time-order fluctuation-dissipation theorem
    Naoto Tsuji, Tomohiro Shitara, and Masahito Ueda
    Phys. Rev. E97, 012101 (2018)

  • Finite-error metrological bounds on multiparameter Hamiltonian estimation
    Naoto Kura and Masahito Ueda
    Phys. Rev. A97, 012101 (2018)


  2017年
  • Quantum Hall phase diagram of two-component Bose gases: Intercomponent entanglement and pseudopotentials
    Shunsuke Furukawa and Masahito Ueda
    Phys. Rev. A96, 053626 (2017)

  • Information Retrieval and Criticality in Parity-Time-Symmetric Systems
    Kohei Kawabata, Yuto Ashida, and Masahito Ueda
    Phys. Rev. Lett. 119, 190401 (2017)

  • Fluctuation theorems in feedback-controlled open quantum systems: Quantum coherence and absolute irreversibility
    Yûto Murashita, Zongping Gong, Yuto Ashida, and Masahito Ueda
    Phys. Rev. A96, 043840 (2017)
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  • Strongly spinor ferromagnetic Bose gases
    Kohaku H. Z. So and Masahito Ueda
    Phys. Rev. A96, 023628 (2017)

  • Parity-time-symmetric quantum critical phenomena
    Yuto Ashida, Shunsuke Furukawa, and Masahito Ueda
    Nat. Commun.8, 15791 (2017)

  • Zeno Hall Effect
    Zonping Gong, Sho Higashikawa, and Masahito Ueda
    Phys.Rev.Lett.118, 200401 (2017)

  • Influence of topological constraints and topological excitations: Decomposition formulas for calculating homotopy groups of symmetry-broken phase"
    Sho Higashikawa and Masahito Ueda
    Phys. Rev. B95, 134520 (2017)

  • Influence of topological constraints and topological excitations: Decomposition formulas for calculating homotopy groups of symmetry-broken phases
    Sho Higashikawa and Masahito Ueda
    Phys. Rev.B 95, 134520 (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)

  • Entanglement prethermalization in an interaction quench between two harmonic oscillators
    Tatsuhiko N. Ikeda,Takashi Mori, Eriko Kaminishi,and Masahito Ueda
    Phys. Rev. E95, 022129 (2017)

  • Gibbs Paradox Revisited from the Fluctuation Theorem with Absolute Irreversibility
    Yûto Murashita and Masahito Ueda
    Phys. Rev. Lett.118, 060601 (2017)

  • Geometrically frustrated coarsening dynamics in spinor Bose-Fermi mixtures
    Nguyen Thanh Phuc, Tsutomu Momoi, Shunsuke Furukawa, Yuki Kawaguchi, Takeshi Fukuhara, and Masahito Ueda
    Phys. Rev. A95, 013620 (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)


  2016年

  2015年
  2014年
  • Quantum Mass Acquisition in Spinor Bose-Einstein Condensates
    Nguyen Thanh Phuc, Yuki Kawaguchi, Masahito Ueda
    Phys. Rev. Lett.113, 230401 (2014)

  • Topological aspects in spinor Bose-Einstein condensates (Key Issues Review)
    Masahito Ueda
    Rep. Prog. Phys.vol.77, 122401 (2014)

  • General achievable bound of extractable work under feedback control
    Yuto Ashida, Ken Funo, Yûto Murashita and Masahito Ueda
    Phys. Rev.E90, 052125 (2014)

  • Nonequilibrium equalities in absolutely irreversible processes
    Yûto Murashita, Ken Funo, and Masahito Ueda
    Phys. Rev.E90C, 042110 (2014)

  • Global phase diagram of two-component Bose gases in antiparallel magnetic fields
    Shunsuke Furukawa, Masahito Ueda
    Phys. Rev. Lett.A90, 033602 (2014)

  • Microscopic Origin and Universality Classes of the Efimov Three-body Parameter
    Pascal Naidon, Shimpei Endo, Masahito Ueda
    Phys. Rev. Lett. 112, 105301 (2014)

  • Lee-Yang cluster expansion approach to the BCS-BEC crossover: BCS and BEC limits
    Naoyuki Sakumichi, Yusuke Nishida, and Masahito Ueda
    Phys. Rev. A 89, 033622 (2014)

  • Topological influence and backaction between topological excitations
    Shingo Kobayashi, Nicolas Tarantino and Masahito Ueda
    Phys. Rev.A 89, 033603 (2014)


  2013年
  2012年
  2011年 Before 2011