Yamaji Youhei

ヤマヂヨウヘイ | Yamaji Youhei

Affiliation and department：
Job title： Group Leader

Research field (1)： Magnetism, superconductivity, and strongly correlated systems

Research theme for competitive and other funds (7)：

2023 - 2026 波動関数理論と量子アルゴリズムの融合
2022 - 2026 スピン軌道結合系イリジウム酸化物の逐次新奇相転移と電流誘起交差相関物性の解明
2020 - 2023 Effective hamiltonian construction through combining numerical simulation with experimental approaches and its application to strongly correlated topological materials
2016 - 2021 Materials Design and Exploration of Functions for Strongly Correlated Materials - Challenges to Non-equilibrium and Non-Periodic Systems
2016 - 2017 強相関物質の物性予測と非平衡系・非周期系への展開

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Papers (66)：

Kensaku Takai, Youhei Yamaji, Fakher F. Assaad, Masatoshi Imada. Quantum criticality of bandwidth-controlled Mott transition. Physical Review Research. 2023
Jean-Baptiste Morée, Motoaki Hirayama, Michael Thobias Schmid, Youhei Yamaji, Masatoshi Imada. Ab initio low-energy effective Hamiltonians for the high-temperature superconducting cuprates Bi2Sr2CuO6, Bi2Sr2CaCu2O8, HgBa2CuO4, and CaCuO2. Physical Review B. 2022
Akito Iwano, Youhei Yamaji. Superconductivity in Bilayer t-t′ Hubbard Models. Journal of the Physical Society of Japan. 2022
Takahiro Misawa, Youhei Yamaji. Zeros of Green functions in topological insulators. Physical Review Research. 2022. 4. 2
Kazuhiro Nawa, Yoshinori Imai, Youhei Yamaji, Hideyuki Fujihara, Wakana Yamada, Ryotaro Takahashi, Takumi Hiraoka, Masato Hagihala, Shuki Torii, Takuya Aoyama, et al. Strongly Electron-Correlated Semimetal RuI3 with a Layered Honeycomb Structure. Journal of the Physical Society of Japan. 2021. 90. 12

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MISC (41)：

Takeo Hoshi, Mitsuaki Kawamura, Kazuyoshi Yoshimi, Yuichi Motoyama, Takahiro Misawa, Youhei Yamaji, Synge Todo, Naoki Kawashima, Tomohiro Sogabe. Kω -- Open-source library for the shifted Krylov subspace method. Preprint; http://arxiv.org/abs/2001.08707. 2020
Kaneko Ryui, Okubo Tsuyoshi, Yamaji Youhei, Kawashima Naoki. Tensor-network study of spin liquid in the Kitaev-Gamma model. Meeting Abstracts of the Physical Society of Japan. 2019. 74.2. 2442-2442
Nomura Yusuke, Yamaji Youhei, Imada Masatoshi. Representing Quantum Many-Body States by Machine Learning. Butsuri. 2019. 74. 2. 72-81
Youhei Yamaji, Takafumi Suzuki, Mitsuaki Kawamura. Numerical Algorithm for Exact Finite Temperature Spectra and Its Application to Frustrated Quantum Spin Systems. 2018
Okubo Tsuyoshi, Kaneko Ryui, Yamaji Youhei, Kawashima Naoki. Ground state calculation of a honeycomb lattice Kitaev model with an off-diagonal interaction by tensor network method. Meeting Abstracts of the Physical Society of Japan. 2018. 73.1. 1105-1105

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Lectures and oral presentations (36)：

Neural-network and numerical analysis of self-energy and superconductivity in copper oxides
(International Workshop on Correlations and Angle-Resolved Photoemission Spectroscopy (CORPES22) 2022)
Hidden self-energies as origin of cuprate superconductivity revealed by Boltzmann machine regression
(The 12th International Conference on Advanced Material and Devices (ICAMD2021) 2021)
Origin of high-temperature superconductivity as a non-linear inverse problem studied by machine learning
(3rd International Symposium on Research and Education of Computational Science 2018)
Spin and Thermal Excitations in Kitaev-type Frustrated Magnets
(KIAS-KAIST Workshop on Topology and Correlation 2018)
Metallicity and Topology in Iridate Domain Walls
(APS March Meeting 2018 2018)

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Professional career (1)：

Work history (1)：

2024/04 - 現在 National Institute for Materials Science Research Center for Materials Nanoarchitectonics Group Leader

Awards (2)：

2023/05 - 一般社団法人HPCIコンソーシアム第1回HPCIソフトウェア賞開発部門賞優秀賞
2017/03 - The Physical Society of Japan Young Scientist Award of the Physical Society of Japan

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