研究 (Research)

  1. 原著論文 (Paper)
    1. Correlation functions and renormalization in a scalar field theory on the fuzzy sphere
      Kohta Hatakeyama and Asato Tsuchiya
      Progress of Theoretical and Experimental Physics 2017, 063B01 (2017) [arXiv:1704.01698 [hep-th]].
    2. Renormalization on the fuzzy sphere
      Kohta Hatakeyama, Asato Tsuchiya, and Kazushi Yamashiro
      Progress of Theoretical and Experimental Physics 2018, 063B05 (2018) [arXiv:1805.03975 [hep-th]].
    3. Equivalence of large-$N$ gauge theories on a group manifold and its coset space
      Kohta Hatakeyama and Asato Tsuchiya
      Physics Letters B782, 503 (2018) [arXiv:1805.10743 [hep-th]].
    4. The emergence of expanding space-time and intersecting D-branes from classical solutions in the Lorentzian type IIB matrix model
      Kohta Hatakeyama, Akira Matsumoto, Jun Nishimura, Asato Tsuchiya, and Atis Yosprakob
      Progress of Theoretical and Experimental Physics 2020, 043B10 (2020) [arXiv:1911.08132 [hep-th]].

  2. 総説 (Review)
    1. Progress in the numerical studies of the type IIB matrix model
      Konstantinos N. Anagnostopoulos, Takehiro Azuma, Kohta Hatakeyama, Mitsuaki Hirasawa,Yuta Ito, Jun Nishimura, Stratos Kovalkov Papadoudis, and Asato Tsuchiya
      The European Physical Journal Special Topics (2023) [arXiv:2210.17537 [hep-th]].

  3. プロシーディングス (Proceedings)
    1. Renormalization on the fuzzy sphere
      Kohta Hatakeyama, Asato Tsuchiya, and Kazushi Yamashiro
      Proceedings of Science LATTICE2018, 045 (2019) [arXiv:1811.10806 [hep-th]].
    2. A new technique for solving the freezing problem in the complex Langevin simulation of 4D SU(2) gauge theory with a theta term
      Akira Matsumoto, Kohta Hatakeyama, Mitsuaki Hirasawa, Masazumi Honda, Yuta Ito, Jun Nishimura, and Atis Yosprakob
      Proceedings of Science LATTICE2021, 087 (2022) [arXiv:2112.01805 [hep-lat]].
    3. Relationship between the Euclidean and Lorentzian versions of type IIB matrix model
      Kohta Hatakeyama, Konstantinos N. Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa,Yuta Ito, Jun Nishimura, Stratos Kovalkov Papadoudis, and Asato Tsuchiya
      Proceedings of Science LATTICE2021, 341 (2022) [arXiv:2112.15368 [hep-lat]].
    4. A new phase in the Lorentzian type IIB matrix model and the emergence of continuous space-time
      Mitsuaki Hirasawa,Konstantinos N. Anagnostopoulos, Takehiro Azuma, Kohta Hatakeyama, Yuta Ito, Jun Nishimura, Stratos Kovalkov Papadoudis, and Asato Tsuchiya
      Proceedings of Science LATTICE2021, 428 (2022) [arXiv:2112.15390 [hep-lat]].
    5. Complex Langevin studies of the emergent space-time in the type IIB matrix model
      Kohta Hatakeyama, Konstantinos N. Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa,Yuta Ito, Jun Nishimura, Stratos Kovalkov Papadoudis, and Asato Tsuchiya
      Proceedings of the East Asia Joint Symposium on Fields and Strings 2021, 9-18 (2022) [arXiv:2201.13200 [hep-th]].
    6. The emergence of expanding space-time in a novel large-$\boldsymbol{N}$ limit of the Lorentzian type IIB matrix model
      Mitsuaki Hirasawa,Konstantinos N. Anagnostopoulos, Takehiro Azuma, Kohta Hatakeyama, Jun Nishimura, Stratos Kovalkov Papadoudis, and Asato Tsuchiya
      Proceedings of Science LATTICE2022, 371 (2023) [arXiv:2212.10127 [hep-lat]].
    7. Numerical studies on the finite-temperature CP restoration in 4D SU(N) gauge theory at $\boldsymbol{\theta=\pi}$
      Akira Matsumoto, Kohta Hatakeyama, Mitsuaki Hirasawa, Masazumi Honda, Jun Nishimura, and Atis Yosprakob
      Proceedings of Science LATTICE2022, 378 (2023) [arXiv:2301.03879 [hep-lat]].
    8. The emergence of expanding space-time in the Lorentzian type IIB matrix model with a novel regularization
      Mitsuaki Hirasawa,Konstantinos N. Anagnostopoulos, Takehiro Azuma, Kohta Hatakeyama, Jun Nishimura, Stratos Papadoudis, and Asato Tsuchiya
      Proceedings of Science Corfu2022, 309 (2023) [arXiv:2307.01681 [hep-th]].

  4. 口頭発表 (Oral presentation) [*:発表者 (Presenter)]
  5. ポスター発表 (Poster presentation) [*:発表者 (Presenter)]
  6. セミナー (Seminar)
    1. Correlation functions and renormalization in a scalar field theory on the fuzzy sphere
      2017年06月27日,KEK理論センター,茨城.
    2. Large-$\boldsymbol{N}$ volume independence on group manifolds
      2018年11月19日,茨城大学素粒子論研究室,茨城.

  7. 取材 (Interview)
    1. スーパーコンピュータを使った超弦理論の数値シミュレーションによる時空創発の研究
      2021年03月13日公開,月刊JICFuS

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最終更新 (Last modified):2023年11月15日 (November 15, 2023)