Publications

Articles:

    Google Scholar

1. Somnath Maity and Ryusuke Hamazaki,
   Kinetically constrained models constructed from dissipative quantum dynamics,
   [arXiv:2403.12548]

2. 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]

3. Ryusuke Hamazaki,
   Quantum Velocity Limits for Multiple Observables: Conservation Laws, Correlations, and Macroscopic Systems,
   Phys. Rev. Research 6, 013018 (2024). [arXiv:2305.03190]
   
   

4. Ken Mochizuki and Ryusuke Hamazaki,
   Absorption to Fluctuating Bunching States in Non-Unitary Boson Dynamics,
   Phys. Rev. Research 6, 013004 (2024). [arXiv:2308.04716]
   
   

5. 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]
   
   

6. Ryusuke Hamazaki,
   Limits to Fluctuation Dynamics,
   [arXiv:2309.07301]
   
   

7. 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]
   
   

8. 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]

9. Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda,
   Rigorous Bounds on Eigenstate Thermalization,
   [arXiv:2303.10069]

10. Ken Mochizuki and Ryusuke Hamazaki,
    Distinguishability transitions in nonunitary boson-sampling dynamics,
    Phys. Rev. Research 5, 013177 (2023). [arXiv:2207.12624]
    
    

11. Atsuki Yoshinaga, Yuichiro Matsuzaki, and Ryusuke Hamazaki,
    Quantum Metrology Protected by Hilbert Space Fragmentation,
    [arXiv:2211.09567]
    
    

12. 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)
    
    

13. 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]

14. 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]
    
    

15. Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda,
    Eigenstate Thermalization in Long-Range Interacting Systems,
    Phys. Rev. Lett. 129, 030602 (2022). [arXiv:2111.12484]

16. Ryusuke Hamazaki, Masaya Nakagawa, Taiki Haga, and Masahito Ueda,
    Lindbladian Many-Body Localization,
    [arXiv:2206.02984]
    
    

17. Kyosuke Adachi, Ryosuke Iritani, and Ryusuke Hamazaki,
    Universal constraint on nonlinear population dynamics,
    Communications Physics 5, 129 (2022). [arXiv:2202.02028]
    
    

18. Ryusuke Hamazaki,
    Speed Limits for Macroscopic Transitions,
    PRX Quantum 3, 020319 (2022). [arXiv:2110.09716]

19. Ryusuke Hamazaki,
    Exceptional dynamical quantum phase transitions in periodically driven systems,
    Nature Communications 12, 5108 (2021). [arXiv:2012.11822]
    Selected in a collection of Quantum Many-Body Dynamics.
    
    

20. 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]
    Press release from EurekAlert!
    
    

21. 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]
    
    

22. Shoki Sugimoto, Ryusuke Hamazaki, and Masahito Ueda,
    Test of Eigenstate Thermalization Hypothesis Based on Local Random Matrix Theory,
    Phys. Rev. Lett. 126, 120602 (2021). [arXiv:2005.06379]
    
    

23. 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]
    
    

24. 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]
    
    Selected as Editor's Suggestion.
    Featured in Physics, see also Synopsis in Physics 13, 74 by Christopher Crockett.
    
    

25. Ryusuke Hamazaki, Kohei Kawabata, Naoto Kura and Masahito Ueda,
    Universality classes of non-Hermitian matrices,
    Phys. Rev. Research, 2, 023286 (2020). [arXiv:1904.13082]
    
    

26. 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]
    
    

27. 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]
    
    

28. 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]
    
    

29. Ryusuke Hamazaki, Kazuya Fujimoto and Masahito Ueda,
    Operator Noncommutativity and Irreversibility in Quantum Chaos,
    [arXiv:1807.02360]
    
    

30. Ryusuke Hamazaki, Kohei Kawabata and Masahito Ueda,
    Non-Hermitian Many-Body Localization,
    Phys. Rev. Lett. 123, 090603 (2019).  [arXiv:1811.11319]
    
    

31. Nobuyuki Yoshioka and Ryusuke Hamazaki,
    Constructing neural stationary states for open quantum many-body systems,
    Phys. Rev. B 99, 214306 (2019). [arXiv:1902.07006]
    
    Selected as Editor's Suggestion.
    Featured in Physics, see also Viewpoint in Physics 12, 74 by Maria Schuld, Ilya Sinayskiy, and Francesco Petruccione.
    Kleidoscope
    
    

32. 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]
    
    

33. Ryusuke Hamazaki and Masahito Ueda,
    Random-matrix behavior of quantum nonintegrable many-body systems with Dyson’s three symmetries,
    Phys. Rev. E 99, 042116 (2019). [arXiv:1901.02119]
    
    

34. Ryusuke Hamazaki and Masahito Ueda,
    Atypicality of Most Few-Body Observables,
    Phys. Rev. Lett. 120, 080603 (2018). [arxiv:1708.04772]
    
    

35. 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]
    
    

36. Zongping Gong, Ryusuke Hamazaki and Masahito Ueda,
    Discrete Time-Crystalline Order in Cavity and Circuit QED Systems,
    Phys. Rev. Lett. 120, 040404 (2018). [arxiv:1708.01472]
    
    

37. Ryusuke Hamazaki, Tatsuhiko N. Ikeda and Masahito Ueda,
    Generalized Gibbs ensemble in a nonintegrable system with an extensive number of local symmetries,
    Phys. Rev. E 93, 032116 (2016). [arxiv:1511.08581]

Master Thesis:

          Ryusuke Hamazaki,

          Theoretical study on thermalization in isolated quantum systems,

          [arXiv:1901.01481]