Theoretical study of symmetry breaking, exotic phases, and measurement theory in nonequilibrium open-system ultracold atomic gases

• Project/Area Number: 18H01145
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
• Research Institution: The University of Tokyo
• Principal Investigator: Ueda Masahito 東京大学, 大学院理学系研究科(理学部), 教授 (70271070)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000); Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2018: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
• Keywords: 冷却原子気体 / トポロジー / 非平衡 / 非エルミート / 人工ゲージ場 / ２成分ボース・アインシュタイン凝縮 / 集団モード / 低エネルギー有効理論 / エンタングルメントエントロピー / 開放量子系 / リンドブラッド方程式 / スキン効果 / 量子散逸系 / 超流動 / リュービル演算子 / エンタングルメント・エントロピー / 磁気ソリトン / 非エルミート物理 / トポロジカル現象 / 多体局在 / トポロジカル相の分類 / 量子磁性 / 負温度 / リープ・ロビンソン限界 / トポロジカル相転移 / パリティ・時間（PT）対称 / クエンチ / 非平衡状態 / トポロジカル相 / 観測 / 熱化

Outline of Final Research Achievements

This study aims at exploring unique phenomena in nonequilibrium open systems which can be realized in ultracold atomic systems subject to controlled introduction of dissipation. We have made a complete classification of topological phases in non-Hermitian systems and found reversal of magnetism due to dissipation. We have also found that the relaxation time scale toward a stationary state depends on not only the spectral gap of the Liouvillean operator but also the localization length of the eigenmodes. Furthermore, we have formulated an effective theory which describes a binary system of Bose-Einstein condensates subject to parallel or antiparallel synthetic gauge fields and used it to investigate collective modes.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた成果は、基礎学理の観点からは非平衡物理現象の研究のフロンティアを拡大するという観点から意義がある。一方、本研究は、現在盛んに研究されている量子コンピュータのパフォーマンスを決定する主要因の一つであるデコヒーレンス・散逸過程や熱化の問題に対する基本的知見を与えるものと考えられ、この意味で社会的意義を有する。

Research Products

• [Int'l Joint Research] 北京計算科学研究センター(中国)
• [Journal Article] Convergent and Efficient Deep Q Learning Algorithm (2022)
  • Author(s): Zhikang T. Wang and Masahito Ueda
  • Journal Title: International Conference on Learning Representations 2022 ICLR 2022 Volume: ICLR 2022 Pages: 1-27
  • Peer Reviewed
• [Journal Article] Strength of Minibatch Noise in SGD (2022)
  • Author(s): Liu Ziyin, Kangqiao Liu, Takashi Mori, and Masahito Ueda
  • Journal Title: International Conference on Learning Representations ICLR 2022 Volume: ICLR 2022 Pages: 1-33
  • Peer Reviewed
• [Journal Article] SGD Can Converge to Local Maxima (2022)
  • Author(s): Liu Ziyin, Botao Li, James B. Simon, and Masahito Ueda
  • Journal Title: International Conference on Learning Representations ICLR 2022 Volume: ICLR 2022 Pages: 1-25
  • Peer Reviewed
• [Journal Article] Intercomponent entanglement entropy and spectrum in binary Bose-Einstein condensates (2021)
  • Author(s): T. Yoshino, S. Furukawa, and M. Ueda
  • Journal Title: Physical Review A Volume: 103 Issue: 4
  • DOI: 10.1103/physreva.103.043321
  • Peer Reviewed
• [Journal Article] Noise and Fluctuation of Finite Learning Rate Stochastic Gradient Descent (2021)
  • Author(s): Kangqiao Liu, Liu Ziyin, and Masahito Ueda
  • Journal Title: Proceedings of the 38th International Conference on Machine Learning PMLR Volume: 139 Pages: 7045-7056
  • Peer Reviewed
• [Journal Article] Collective Excitations and Nonequilibrium Phase Transition in Dissipative Fermionic Superfluids (2021)
  • Author(s): Yamamoto Kazuki、Nakagawa Masaya、Tsuji Naoto、Ueda Masahito、Kawakami Norio
  • Journal Title: Physical Review Letters Volume: 127 Issue: 5 Pages: 055301-055301
  • DOI: 10.1103/physrevlett.127.055301
  • Peer Reviewed / Open Access
• [Journal Article] Liouvillian Skin Effect: Slowing Down of Relaxation Processes without Gap Closing (2021)
  • Author(s): Haga Taiki、Nakagawa Masaya、Hamazaki Ryusuke、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 127 Issue: 7 Pages: 070402-070402
  • DOI: 10.1103/physrevlett.127.070402
  • Peer Reviewed
• [Journal Article] Entropy Production of a Closed Hamiltonian System via the Detailed Fluctuation Relation (2021)
  • Author(s): Yuto Murashita, Naoto Kura, and Masahito Ueda
  • Journal Title: Physical Review Research Volume: 3 033224 Issue: 3
  • DOI: 10.1103/physrevresearch.3.033224
  • Peer Reviewed / Open Access
• [Journal Article] Non-Hermitian physics (2021)
  • Author(s): Ashida Yuto、Gong Zongping、Ueda Masahito
  • Journal Title: Advances in Physics Volume: 69 Issue: 3 Pages: 249-435
  • DOI: 10.1080/00018732.2021.1876991
  • Peer Reviewed
• [Journal Article] Exact Liouvillian Spectrum of a One-Dimensional Dissipative Hubbard Model (2021)
  • Author(s): Nakagawa Masaya、Kawakami Norio、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 126 Issue: 11 Pages: 110404-110404
  • DOI: 10.1103/physrevlett.126.110404
  • Peer Reviewed
• [Journal Article] Test of the Eigenstate Thermalization Hypothesis Based on Local Random Matrix Theory (2021)
  • Author(s): Sugimoto Shoki、Hamazaki Ryusuke、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 126 Issue: 12
  • DOI: 10.1103/physrevlett.126.120602
  • Peer Reviewed
• [Journal Article] Dynamical sign reversal of magnetic correlations in dissipative Hubbard models (2020)
  • Author(s): Masaya Nakagawa, Naoto Tsuji, Norio Kawakami, Masahito Ueda
  • Journal Title: Physical Review Letters Volume: 124 Issue: 14 Pages: 147203-147203
  • DOI: 10.1103/physrevlett.124.147203
  • Peer Reviewed
• [Journal Article] Universality Classes of Non-Hermitian Random Matrices (2020)
  • Author(s): Hamazaki Ryusuke, Kawabata Kohei, Kura Naoto, Ueda Masahito
  • Journal Title: Physical Review Research Volume: 2 Issue: 2 Pages: 023286-023286
  • DOI: 10.1103/physrevresearch.2.023286
  • Peer Reviewed / Open Access
• [Journal Article] Magnetic Solitons in a Spin-1 Bose-Einstein Condensate (2020)
  • Author(s): Chai X.、Lao D.、Fujimoto Kazuya、Hamazaki Ryusuke、Ueda Masahito、Raman C.
  • Journal Title: Physical Review Letters Volume: 125 Issue: 3 Pages: 030402-030402
  • DOI: 10.1103/physrevlett.125.030402
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deep Reinforcement Learning Control of Quantum Cartpoles (2020)
  • Author(s): Wang Zhikang T.、Ashida Yuto、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 125 Issue: 10 Pages: 100401-100401
  • DOI: 10.1103/physrevlett.125.100401
  • Peer Reviewed
• [Journal Article] Thermodynamic Uncertainty Relation for Arbitrary Initial States (2020)
  • Author(s): Liu Kangqiao, Gong Zongping, Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 125 Issue: 14
  • DOI: 10.1103/physrevlett.125.140602
  • Peer Reviewed
• [Journal Article] Neural Networks Fail to Learn Periodic Functions and How to Fix It (2020)
  • Author(s): Liu Ziyin, Hartwig Tilman, Ueda Masahito
  • Journal Title: NeurIPS 2020 Volume: 1 Pages: 1-22
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Quantum Equilibration, Thermalization and Prethermalization in Ultracold Atoms (2020)
  • Author(s): Ueda Masahito
  • Journal Title: Nature Reviews Physics Volume: 2 Issue: 12 Pages: 669-681
  • DOI: 10.1038/s42254-020-0237-x
  • Peer Reviewed
• [Journal Article] Effective temperature of a superfluid flowing in a random potential (2020)
  • Author(s): Taiki Haga and Masahito Ueda
  • Journal Title: Physical Review Research Volume: 2 Issue: 4 Pages: 043316-043316
  • DOI: 10.1103/physrevresearch.2.043316
  • Peer Reviewed / Open Access
• [Journal Article] Continuous Phase Transition without Gap Closing in Non-Hermitian Quantum Many-Body Systems (2020)
  • Author(s): N. Matsumoto, K. Kawabata, Y. Ashida, S. Furukawa, M. Ueda
  • Journal Title: Physical Review Letters Volume: 125 Issue: 26 Pages: 260601-260601
  • DOI: 10.1103/physrevlett.125.260601
  • NAID: 130008152629
  • Peer Reviewed
• [Journal Article] Standard Quantum Limit and Heisenberg Limit in Function Estimation (2020)
  • Author(s): Kura Naoto、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 124 Issue: 1 Pages: 1-6
  • DOI: 10.1103/physrevlett.124.010507
  • Peer Reviewed
• [Journal Article] Morphological Superfluid in a Nonmagnetic Spin-2 Bose-Einstein Condensate (2020)
  • Author(s): Emi Yukawa and Masahito Ueda
  • Journal Title: Physical Review Letters Volume: 124 Issue: 10 Pages: 1-5
  • DOI: 10.1103/physrevlett.124.105301
  • NAID: 130008153647
  • URL: https://pure.teikyo.jp/en/publications/923c7a39-d120-423e-b832-8c7842c6e5e4
  • Peer Reviewed
• [Journal Article] Random-matrix behavior of quantum nonintegrable many-body systems with Dyson's three symmetries (2019)
  • Author(s): Hamazaki Ryusuke、Ueda Masahito
  • Journal Title: Physical Review E Volume: 99 Issue: 4 Pages: 1-12
  • DOI: 10.1103/physreve.99.042116
  • Peer Reviewed
• [Journal Article] Flemish Strings of Magnetic Solitons and a Nonthermal Fixed Point in a One-Dimensional Antiferromagnetic Spin-1 Bose Gas (2019)
  • Author(s): Fujimoto Kazuya、Hamazaki Ryusuke、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 122 Issue: 17 Pages: 173001-173001
  • DOI: 10.1103/physrevlett.122.173001
  • Peer Reviewed
• [Journal Article] Floquet Chiral Magnetic Effect (2019)
  • Author(s): Higashikawa Sho、Nakagawa Masaya、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 123 Issue: 6 Pages: 1-6
  • DOI: 10.1103/physrevlett.123.066403
  • Peer Reviewed
• [Journal Article] Non-Hermitian Many-Body Localization (2019)
  • Author(s): Hamazaki Ryusuke、Kawabata Kohei、Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 123 Issue: 9 Pages: 1-7
  • DOI: 10.1103/physrevlett.123.090603
  • NAID: 130007736059
  • Peer Reviewed
• [Journal Article] Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction (2019)
  • Author(s): Yamamoto Kazuki、Nakagawa Masaya、Adachi Kyosuke、Takasan Kazuaki、Ueda Masahito、Kawakami Norio
  • Journal Title: Physical Review Letters Volume: 123 Issue: 12 Pages: 1-7
  • DOI: 10.1103/physrevlett.123.123601
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Symmetry and Topology in Non-Hermitian Physics (2019)
  • Author(s): Kawabata Kohei、Shiozaki Ken、Ueda Masahito、Sato Masatoshi
  • Journal Title: Physical Review X Volume: 9 Issue: 4 Pages: 1-52
  • DOI: 10.1103/physrevx.9.041015
  • NAID: 120006878522
  • Peer Reviewed / Open Access
• [Journal Article] Observation of Critical Phenomena in Parity-Time-Symmetric Quantum Dynamics (2019)
  • Author(s): Xiao Lei、Wang Kunkun、Zhan Xiang、Bian Zhihao、Kawabata Kohei、Ueda Masahito、Yi Wei、Xue Peng
  • Journal Title: Physical Review Letters Volume: 123 Issue: 23 Pages: 1-6
  • DOI: 10.1103/physrevlett.123.230401
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deep Gamblers: Learning to Abstain with Portfolio Theory (2019)
  • Author(s): Ziyin Liu, Zhikang Wang, Paul Pu Liang, Russ R. Salakhutdinov, Louis-Philippe Morency and Masahito Ueda
  • Journal Title: NeurIPS Volume: 2019 Pages: 1-11
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Collective modes of vortex lattices in two-component Bose-Einstein condensates under synthetic gauge fields (2019)
  • Author(s): T. Yoshino, S. Furukawa, S. Higashikawa, M. Ueda
  • Journal Title: New Journal of Physics Volume: 21 Issue: 1 Pages: 1-23
  • DOI: 10.1088/1367-2630/aaf373
  • Peer Reviewed / Open Access
• [Journal Article] Topological unification of time-reversal and particle-hole symmetries in non-Hermitian physics (2019)
  • Author(s): Kawabata Kohei, Higashikawa Sho, Gong Zongping, Ashida Yuto, Ueda Masahito
  • Journal Title: Nature Communications Volume: 10 Issue: 1 Pages: 1-7
  • DOI: 10.1038/s41467-018-08254-y
  • NAID: 130007737174
  • Peer Reviewed / Open Access
• [Journal Article] Second-Order Topological Phases in Non-Hermitian Systems (2019)
  • Author(s): Liu Tao, Zhang Yu-Ran, Ai Qing, Gong Zongping, Kawabata Kohei, Ueda Masahito, Nori Franco
  • Journal Title: Physical Review Letters Volume: 122 Issue: 7 Pages: 076801-076801
  • DOI: 10.1103/physrevlett.122.076801
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Full-Counting Many-Particle Dynamics: Nonlocal and Chiral Propagation of Correlations (2018)
  • Author(s): Ashida Yuto, Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 120 Issue: 18 Pages: 185301-185301
  • DOI: 10.1103/physrevlett.120.185301
  • NAID: 130007510811
  • Peer Reviewed
• [Journal Article] Thermalization and prethermalization in isolated quantum systems: a theoretical overview (2018)
  • Author(s): Mori Takashi, Ikeda Tatsuhiko N, Kaminishi Eriko, Ueda Masahito
  • Journal Title: Journal of Physics B: Atomic, Molecular and Optical Physics Volume: 51 Issue: 11 Pages: 1-49
  • DOI: 10.1088/1361-6455/aabcdf
  • Peer Reviewed
• [Journal Article] Many-body spin Hall effect with space-inversion symmetry (2018)
  • Author(s): Phuc Nguyen Thanhk, Ueda Masahito
  • Journal Title: Physical Review A Volume: 97 Issue: 6
  • DOI: 10.1103/physreva.97.061608
  • Peer Reviewed
• [Journal Article] Nonholonomy of order parameters and su(3) vortices in spin-1 Bose-Einstein condensates (2018)
  • Author(s): Yukawa Emi, Ueda Masahito
  • Journal Title: Physical Review A Volume: 98 Issue: 1
  • DOI: 10.1103/physreva.98.013607
  • Peer Reviewed
• [Journal Article] Bound on the exponential growth rate of out-of-time-ordered correlators (2018)
  • Author(s): Tsuji Naoto、Shitara Tomohiro、Ueda Masahito
  • Journal Title: Physical Review E Volume: 98 Issue: 1
  • DOI: 10.1103/physreve.98.012216
  • NAID: 130007647703
  • Peer Reviewed
• [Journal Article] Parity-time-symmetric topological superconductor (2018)
  • Author(s): Kawabata Kohei、Ashida Yuto、Katsura Hosho、Ueda Masahito
  • Journal Title: Physical Review B Volume: 98 Issue: 8 Pages: 085116-085116
  • DOI: 10.1103/physrevb.98.085116
  • Peer Reviewed
• [Journal Article] Topological Phases of Non-Hermitian Systems (2018)
  • Author(s): Gong Zongping, Ashida Yuto, Kawabata Kohei, Takasan Kazuaki, Higashikawa Sho、Ueda Masahito
  • Journal Title: Physical Review X Volume: 8 Issue: 3 Pages: 031079-031079
  • DOI: 10.1103/physrevx.8.031079
  • Peer Reviewed / Open Access
• [Journal Article] Thermalization and Heating Dynamics in Open Generic Many-Body Systems (2018)
  • Author(s): Ashida Yuto, Saito Keiji, Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 121 Issue: 17
  • DOI: 10.1103/physrevlett.121.170402
  • Peer Reviewed
• [Journal Article] Anomalous helical edge states in a non-Hermitian Chern insulator (2018)
  • Author(s): Kawabata Kohei, Shiozaki Ken, Ueda Masahito
  • Journal Title: Physical Review B Volume: 98 Issue: 16
  • DOI: 10.1103/physrevb.98.165148
  • Peer Reviewed
• [Journal Article] Non-Hermitian Kondo Effect in Ultracold Alkaline-Earth Atoms (2018)
  • Author(s): Nakagawa Masaya, Kawakami Norio, Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 121 Issue: 20
  • DOI: 10.1103/physrevlett.121.203001
  • NAID: 130007736451
  • Peer Reviewed
• [Journal Article] Universal noise in continuous transport measurements of interacting fermions (2018)
  • Author(s): Uchino Shun、Ueda Masahito、Brantut Jean-Philippe
  • Journal Title: Physical Review A Volume: 98 Issue: 6 Pages: 063619-063619
  • DOI: 10.1103/physreva.98.063619
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Topological Entanglement-Spectrum Crossing in Quench Dynamics (2018)
  • Author(s): Gong Zongping, Ueda Masahito
  • Journal Title: Physical Review Letters Volume: 121 Issue: 25
  • DOI: 10.1103/physrevlett.121.250601
  • Peer Reviewed
• [Presentation] Nonequilibrium control of quantum many-body systems beyond the hermitian framework of quantum physics (2021)
  • Author(s): 上田正仁
  • Organizer: KITP workshop on Transport and Efficient Energy Conversion in Quantum Systems
  • Int'l Joint Research / Invited
• [Presentation] Out-of-time-order fluctuation-dissipation theorem and universal bound on chaos (2021)
  • Author(s): 上田正仁
  • Organizer: International workshop on Probing Complex Quantum Dynamics through Out-of-time-ordered Correlators
  • Int'l Joint Research / Invited
• [Presentation] Beyond-Hermitian Quantum Physics (2021)
  • Author(s): 上田正仁
  • Organizer: Physics department colloquium at St. Andrews
  • Int'l Joint Research / Invited
• [Presentation] Beyond-Hermitian Quantum Physics (2021)
  • Author(s): 上田正仁
  • Organizer: 1st International Symposium on Trans Scale Quantum Science 1st International Symposium on Trans-Scale Quantum Science (TSQS2021)
  • Int'l Joint Research / Invited
• [Presentation] Beyond Hermitian Quantum Physics (2021)
  • Author(s): 上田正仁
  • Organizer: Quantum simulation of novel phenomena with ultracold atoms and molecules
  • Int'l Joint Research / Invited
• [Presentation] Beyond-Hermitian Quantum Physics (2021)
  • Author(s): Ueda Masahito
  • Organizer: PCTS: Many-Body Physics in Open Quantum Systems
  • Int'l Joint Research / Invited
• [Presentation] Beyond-Hermitian Quantum Physics (2021)
  • Author(s): Ueda Masahito
  • Organizer: Conference on Time Crystals Conference on Time Crystals (smr 3593)
  • Int'l Joint Research / Invited
• [Presentation] 強化学習による量子制御 (一般シンポジウム講演） (2021)
  • Author(s): Ueda Masahito
  • Organizer: 日本物理学会 第76回年次大会
  • Invited
• [Presentation] Beyond-Hermitian Quantum Physics (2021)
  • Author(s): Ueda Masahito
  • Organizer: APS March Meeting 2021
  • Int'l Joint Research / Invited
• [Presentation] Many-body physics and thermodynamics in open quantum systems (2020)
  • Author(s): 上田正仁
  • Organizer: SFB/ZOQ Seminar
  • Int'l Joint Research / Invited
• [Presentation] Nonequilibrium thermodynamics and many-body dynamics in open quantum systems (2019)
  • Author(s): 上田正仁
  • Organizer: Joint Quantum Seminars
  • Int'l Joint Research / Invited
• [Presentation] Nonequilibrium thermodynamics and many-body dynamics in open quantum systems (2019)
  • Author(s): 上田正仁
  • Organizer: Conference on Quantum Measurement: Fundamentals, Twists, and Applications
  • Int'l Joint Research / Invited
• [Presentation] 物理学との対話２-科学とAIの接点- (2019)
  • Author(s): 上田正仁
  • Organizer: 2019年人工知能学会全国大会 The 33rd Annual Conference of the Japanese Society for Artificial Intelligence, 2019
  • Invited
• [Presentation] Coarsening dynamics of spinor mixtures (2019)
  • Author(s): 上田正仁
  • Organizer: Workshop on Quantum Mixtures
  • Int'l Joint Research / Invited
• [Presentation] Discrete Time-Crystalline Order in Cavity and Circuit-QED Systems (2019)
  • Author(s): 上田正仁
  • Organizer: Time Crystals and Related Phenomena
  • Int'l Joint Research / Invited
• [Presentation] Nonequilibrium many-body dynamics under quantum measurement (2019)
  • Author(s): 上田正仁
  • Organizer: EPiQS-TMS 3rd Alliance Workshop on Topological Materials Science
  • Int'l Joint Research / Invited
• [Presentation] Discrete time crystals in cavity- and circuit-QED systems (2019)
  • Author(s): 上田正仁
  • Organizer: Frontiers of Quantum Matter
  • Int'l Joint Research / Invited
• [Presentation] Nonequilibrium many-body quantum dynamics under continuous observation (2019)
  • Author(s): 上田正仁
  • Organizer: Physics across Boundaries
  • Int'l Joint Research / Invited
• [Presentation] Nonequilibrium thermodynamics and many-body dynamics in open quantum systems (2019)
  • Author(s): 上田正仁
  • Organizer: APS March Meeting
  • Int'l Joint Research / Invited
• [Presentation] Nonequilibrium many-body quantum dynamics under continuous observation (2019)
  • Author(s): 上田正仁
  • Organizer: II Workshop on Quantum Information and Thermodynamics
  • Int'l Joint Research / Invited
• [Presentation] Discrete Time-Crystalline Ord6er in Cavity and Circuit-QED Systems (2018)
  • Author(s): 上田正仁
  • Organizer: International Molecule Program on Floquet Theory : Fundamentals and Applications
  • Int'l Joint Research / Invited
• [Presentation] Atypicality of most few-body observables (2018)
  • Author(s): 上田正仁
  • Organizer: KITP QTHERMO-C18 Conference
  • Int'l Joint Research / Invited
• [Presentation] Non-equilibrium topo systems (2018)
  • Author(s): 上田正仁
  • Organizer: Erice Workshop 2018
  • Int'l Joint Research / Invited
• [Presentation] Linear response and sum rules of ultracold atomic gases-Part I（発表日8/13）、 Linear response and sum rules of ultracold atomic gases-Part II (発表日 8/14) (2018)
  • Author(s): 上田正仁
  • Organizer: Linear Response and Non-Equilibrium Dynamics of Quantum Many-Body Systems
  • Int'l Joint Research / Invited
• [Presentation] Quantum many-body dynamics under continuous observation (2018)
  • Author(s): 上田正仁
  • Organizer: US-Japan QELS-13, the 13th Japan-US Joint Seminar on Quantum Electronics and Laser Spectroscopy
  • Int'l Joint Research / Invited
• [Presentation] Discrete time crystalline order in cavity and circuit-QED systems (2018)
  • Author(s): 上田正仁
  • Organizer: The 8th CEMS Research Camp
  • Invited
• [Presentation] Dynamics of continuously monitored quantum many-body systems (2018)
  • Author(s): 上田正仁
  • Organizer: Research Frontiers in Ultracold Quantum Gases
  • Int'l Joint Research / Invited
• [Remarks] 上田研究室HP
  • URL: http://cat.phys.s.u-tokyo.ac.jp/
• [Remarks] 上田研究室HP
  • URL: http://cat.phys.s.u-tokyo.ac.jp/index.html
• [Remarks] 上田研究室ホームページ
  • URL: http://cat.phys.s.u-tokyo.ac.jp/index.html