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Dr. Kazuki Yamamoto

Assistant Professor

Department of Physics, Institute of Science Tokyo (Former Tokyo Institute of Technology)

Contact

Email: yamamoto [atmark] phys.sci.isct.ac.jp

Research Interest

Nonequilibrium many-body physics in open quantum systems:

I am interested in strongly correlated phenomena in condensed matter physics, particularly in open quantum systems with ultracold atoms. Recently, I am working on many-body physics by using both analytical and numerical methods, such as Bethe ansatz, conformal field theory, and (non-Hermitian generalization of) density-matrix renormalization group analysis.

Novel Many-Body Measurement-Induced Universality Free from Postselection:

Recently, quantum measurement has attracted great attention as it causes drastic nonequilibrium quantum phenomena such as in condensed matter physics and quantum information sciences. We have revealed that subsystem fluctuations in many-body systems can exhibit novel measurement-induced universality and are accessed in experiments without postselection (see our paper).

What's New

Dec. 14-18, 2025

I am going to give a talk in Beyond Linearlity: Frontiers in Non-Hermitian Many-Body Physics - Erice, Sicily, Italy

Oct. 5, 2025

I have given an invited talk in 2025 Tokyo-Beijing-Sendai Joint Workshop on Quantum Matter

Sep.23, 2025

Joint paper "Dimensionality effect on exceptional fermionic superfluidity with spin-dependent asymmetric hopping" has appeard on arXiv

Sep. 16, 2025

Joint paper "Itinerant ferromagnetism in an SU(3) Fermi-Hubbard model at finite temperatures: A dynamical mean-field theory study" has been published in Physical Review B

Aug. 13, 2025

Joint paper "Measurement-induced phase transitions for free fermions in a quasiperiodic potential" has been published in Physical Review B

Jul. 8, 2025

I am going to give a talk in International Conference on Strongly Correlated Electron Systems 2025 - Montréal, Canada

Apr. 29, 2025

Joint paper "Spin-Depairing-Induced Exceptional Fermionic Superfluidity" has appeared on arXiv

Mar. 25, 2025

The original paper "Correlation versus dissipation in a non-Hermitian Anderson impurity model" has been published in Physical Review B

Mar. 19, 2025

I have given a talk in APS Joint March & April Meeting: Global Physics Summit 2025

Mar. 19, 2025

I have given an invited talk in the Physical Society of Japan 2025 Spring Meeting

Mar. 5, 2025

New original paper "Measurement-Induced Crossover of Quantum Jump Statistics in Postselection-Free Many-Body Dynamics" has appeared on arXiv

Mar. 5, 2025

I have received Best Teacher Award in the Department of Physics from Institute of Science Tokyo

Nov. 25, 2024

The joint paper "Phase diagram of non-Hermitian BCS superfluids in a dissipative asymmetric Hubbard model" has been published in Physical Review B

Nov. 22, 2024

I have given a talk in ISSP Theory mini-Workshop "Correlated Quantum Materials + beyond" (CQM+b2024)

Oct. 17, 2024

I have received Young Scientist Award of the Physical Society of Japan, 2025 (Division 1, Atomic and Molecular physics, Quantum Electronics, Radiation)

Oct. 1, 2024

Tokyo Institute of Technology and Tokyo Medical and Dental University have merged and become Institute of Science Tokyo.

Jul. 15, 2024

I have given a poster presentation in The 28th International Conference on Atomic Physics - Imperial College, London, UK

Jun. 24, 2024

I have received the 23rd Tokyo Tech Challenging Research Awards

Jun. 18, 2024

I have given a poster presentation in Trends in Theory of Quantum Materials 2024 - Switzerland

(Click the arrow on the right side for past news)

May 18, 2024

I have received 23th Funai Information Research Award for Young Researchers

Apr. 22, 2024

I have given a talk in Quantum Simulation of Novel Phenomena with Ultracold Atoms and Molecules - Kyoto

Mar. 21, 2024

I have given a seminar in the University of Zurich (Held by Theory of Quantum Matter Laboratory (PI: Prof. Titus Neupert)). I especially thank to Prof. Neupert for the discussion and the nice lunch!

Mar. 15, 2024

I have given a seminar in the University of Fribourg (Held by Computational Physics Laboratory (PI: Prof. Philipp Werner))

Mar. 14, 2024

I have given a seminar in the University of Geneva (Held by Theory of Quantum Matter Laboratory (PI: Prof. Thierry Giamarchi)). Prof. Giamarchi and a lot of researchers have welcomed me. Especially, I thank Prof. Giamarchi for the nice lunch and all of his hospitality!

Mar. 11 - 27, 2024

I have stayed at the Computational Physics Laboratory (PI: Prof. Philipp Werner) in the University of Fribourg, Switzerland.

Feb. 7, 2024

The joint paper "Theory of non-Hermitian fermionic superfluidity on a honeycomb lattice: Interplay between exceptional manifolds and Van Hove singularity" has been published in Physical Review B (Letter)

Dec. 20, 2023

I have received the Young Scientist Research Award of the Department of Physics, Tokyo Institute of Technology

Dec. 14, 2023

I have received 40th Inoue Research Award for Young Scientists

Dec. 12, 2023

I have given a talk in 12th Nonequibilrium Quantum Workshop - Kravavec, Slovenia

Oct. 9, 2023

The joint paper "Interaction-induced Liouvillian skin effect in a fermionic chain with a two-body loss" has been published in Physical Review B

Oct. 4, 2023

I have given a talk in Workshop on Criticality, Dynamics, and Nonequilibrium Behavior in Quantum Systems - Évora, Portugal

Aug. 21, 2023

I have given an oral presentation in Workshop on Dynamics of Monitored Quantum Many-Body Systems - Trieste, Italy

Aug. 9, 2023

I have given an oral presentation in 28th International Conference on Statistical Physics - Tokyo

Jun. 26, 2023

I have given a seminar in Extreme Universe Circular Meeting

May 25, 2023

The original paper "Localization properties in disordered quantum many-body dynamics under continuous measurement" has been published in Physical Review B (Letter)

Apr. 21, 2023

I have given a seminar entitled "Nonequilibrium quantum many-body physics in open systems" in Tokyo Institute of Technology

Apr. 1, 2023

I have moved to Tokyo Institute of Technology as an assistant professor

Mar. 7, 2023

I have given a talk in American Physical Society March Meeting 2023 - Las Vegas

Jan. 3, 2023

The original paper "Universal description of dissipative Tomonaga-Luttinger liquids with SU(N) spin symmetry: Exact spectrum and critical exponents" has been published in Physical Review B

Dec. 21, 2022

I have given a seminar at Katsura Group in Univ. Tokyo

Oct. 31, 2022

I have given a talk in Trends in the Theory of Quantum Materials 2022 (Swiss-Japan workshop 2022) - Switzerland

Oct. 24, 2022

I've been awarded the Student Presentation Award of the Physical Society of Japan (Division 1) in Japan Physical Society Autumn Meeting 2022 (release from Kyoto University)

Sep. 13, 2022

I have given a talk in Japan Physical Society Autumn Meeting 2022

Aug. 19, 2022

I have given a talk in 29th International Conference on Low Temperature Physics

Jul. 26, 2022

I have given a poster presentation in SCES2022 - Amsterdam, Netherlands

Jul. 23, 2022

I have attended the Enrico Fermi Summer School Course 211 - Varenna, Lake Como, Italy

May 20, 2022

The original paper "Universal properties of dissipative Tomonaga-Luttinger liquids: Case study of a non-Hermitian XXZ spin chain" has been published in Physical Review B

May 17, 2022

I have given an invited talk in APCTP workshop "Numerical Methods in Theoretical Physics" (Youtube)

Apr. 12, 2022

I have given a talk in Ultracold Atoms Japan 2022

Links

Koga Laboratory, Tokyo Institute of Technology

Condensed Matter Theory Group, Kyoto University

Talk in APCTP (Click the Youtube button on the right side)

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