About me


  • Computational Physics
  • Quantum Many-Body Physics
  • Nonequilibrium Statistical Mechanics
  • Tensor Network
  • Quantum Entanglement


  • MSc in Physics, 2019

    The University of Tokyo (Miyashita's group)

  • BSc in Physics, 2017

    The University of Tokyo



  1. Hong Yang, HN, and Hosho Katsura, Symmetry-protected topological phases in spinful bosons with a flat band, Phys. Rev. Research 3, 023210 (2021)

  2. HN, Tatsuhiko Shirai, and Takashi Mori, Tensor network approach to thermalization in open quantum many-body systems, Phys. Rev. E 103, L040102 (2021)

  3. HN and Seiji Miyashita, Characterization of localized effective spins in gapped quantum spin chains, Phys. Rev. B 100, 195105 (2019)



  1. HN, Tatsuhiko Shirai, Takashi Mori, Tensor network analysis of the non-equilibrium steady states of dissipative quantum many-body systems, The Physical Society of Japan 74th Autumn Meeting 2019, 10aK15-8 (Gifu University, Gifu, Japan)
  2. HN, Seiji Miyashita, Structure of matrix-product-state representation for impurity-induced localized spin state, The Physical Society of Japan 73rd Autumn Meeting 2018, 10pM202-6 (Doshisha University, Kyoto, Japan)
  3. HN, Seiji Miyashita, Response and control of localized states in one dimensional quantum spin systems, The Physical Society of Japan 73rd Annual Meeting 2018, 22aK704-9 (Tokyo University of Science, Chiba, Japan)


  1. HN, 非平衡環境下における非可積分量子多体系の熱平衡化現象, Frontiers of Quantum Computational Science 2020, P04 (Online)


Julia packages


TensorRules.jl provides a macro @∇ which derives a custom adjoints for functions containing @tensor and @tensoropt macros. @tensor and @tensoropt are macros for tensor contraction by Einstein notation defined in TensorOperations.jl. This package are designed to use automatic differentiations for tensor network algorithms.


A simple wrapper of MathLink.jl. This package make it easy to use Wolfram Mathematica to obtain symbolic solutions of linear algebra problems from Julia.


Simple implementations of tangent space algorithms for uniform MPS

Recent Posts (in Japanese)


Qiitaに書いた記事をこちらにも載せておきます。内容は全く同じです。 何があったか PackageCompiler.jlを使って OhMyREP

Pure Juliaの行列演算ライブラリGaius.jlでIntel MKLを倒したい

Qiitaに書いた記事をこちらにも載せておきます。内容は全く同じです。 LoopVectorization.jlを使うとPure JuliaでI


Qiitaに書いた記事をこちらにも載せておきます。内容は全く同じです。 Krylov部分空間法を使って線形方程式や固有値問題等を解きたいときに


最近 LoopVectorization.jlがすごいということで、 Julia界隈が盛り上がっているらしい。 単純なforループの前に@avxマ


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