トポジカル渦のシミュレーション
氏名:山本 新
所属:大阪大学核物理研究センター(RCNP)グループ
概要:核物理研究センターでは、サブアトミック世界の強い相互作用の基本原理である量子色力学(QCD)を中心に、素粒子・ハドロン・原子核物理学とその関連分野にわたる研究を、全国の共同利用研究者とともに行っている。スーパーコンピューターは、大規模計算を必要とする理論的な研究を中心に使用されている。その内容は、格子QCDによる数値シミュレーション、原子核構造及びハドロン物理現象論の数値的な解法を始め、深層学習の加速器実験への応用を含む。
(i) 格子QCD
ハドロン分光学(質量などの計算)とハドロン間相互作用、クォーク間相互作用、有限温度・密度における真空の性質・状態方程式、閉じ込め・カイラル対称性の問題
(ii) 少数多体系・原子核構造
3-4核子系の精密計算、原子核密度汎関数法
(iii) 機械学習
加速器実験への応用(加速器の運転制御、Belle実験・ILC実験での信号識別・フレーバー識別、ILC SiDカロリメータのエネルギー較正)
(iv) その他
2次元格子フェルミオン系、超新星爆発、弦理論
論文掲載,発表実績:
(学術雑誌掲載論文)
- T. Shimazaki, A. Yamamoto, "t Hooft surface in lattice gauge theory",Phys. Rev. D 102, 034517 (2020)
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K. Iwano, T. Yamaguchi, and H. Okamoto,
"Ultrabosonic behavior in photoexcited one-dimensional Mott insulators in the region of weak intersite Coulombic interaction",
Physical Review B 102, 245114 (2020) -
K. Iwano, T. Yamaguchi, and H. Okamoto,
"Ultrabosonic behavior in photoexcited one-dimensional Mott insulators in the region of weak intersite Coulombic interaction",
Physical Review B 102, 245114 (2020) -
T. Yamaguchi, K. Iwano, T. Miyamoto, N. Takamura, N. Kida, Y. Takahashi, T. Hasegawa, and H. Okamoto,
"Excitoic optical spectra and energy structues in a one-dimensional Mott insulator demonstrated by applying a many-body Wannier fucntions method to a charge model",
Physical Review B 103, 045124 (2021) -
Etsuko Itou1,2,3 and Yuki Nagai4,5,
"Sparse modeling approach to obtaining the shear viscosity from smeared correlation functions",
Journal of High Energy Physics 07, 007 (2020). -
Takuya Furusawa1,2, Yuya Tanizaki3, and Etsuko Itou4,5,6,
"Finite-density massless two-color QCD at the isospin Roberge-Weiss point and the 't Hooft anomaly",
Physical Review Research 2, 033253 (2020). -
Toshiaki Fujimori1, Etsuko Itou1,2,3, Tatsuhiro Misumi1,4, Muneto Nitta1, and Norisuke Sakai1,
"Lattice ℂPN−1 model with ℤN twisted boundary condition: bions, adiabatic continuity and pseudo-entropy",
Journal of High Energy Physics 08, 011 (2020). -
Kei Iida1, Etsuko Itou1,2,3, and Tong-Gyu Lee1,4,
"Relative scale setting for two-color QCD with Nf=2 Wilson fermions",
Progress of Theoretical and Experimental Physics 2021, 013B05 (2021). -
Hiroaki Kouno, Takehiro Hirakida,
"The persistent homology analyses in particle and nuclear physics",
Reports of the Faculty of Science and Engineering, Saga University, Vol. 49, No.1, 2020, pp.1~5 -
Masayasu Hasegawa,
"Monopole and instanton effects in QCD",
J. High Energ. Phys. 2020, 113 (2020) -
Nodoka Yamanaka, Hideaki Iida, Atsushi Nakamura, Masayuki Wakayama,
"Dark matter scattering cross section and dynamics in dark Yang-Mills theory",
Physics Letters B 813, 136056 (2021) -
Nodoka Yamanaka, Hideaki Iida, Atsushi Nakamura, Masayuki Wakayama,
"Glueball scattering cross section in lattice SU(2) Yang-Mills theory",
Physical Review D 102, 054507 (2020) -
Hiroki Ohata and Hideo Suganuma,
"Gluonic-excitation energies and Abelian dominance in SU(3) QCD",
Physical Review D -
Hiroki Ohata and Hideo Suganuma,
"Clear correlation between monopoles and the chiral condensate in SU(3) QCD",
Physical Review D -
Sibo Wang, Qiang Zhao, Peter Ring, and Jie Meng,
"Nuclear matter in relativistic Brueckner-Hartree-Fock theory with Bonn potential in the full Dirac space",
arXiv:2103.12960 (2021) -
J. Hu, S. Bao, Y. Zhang, K. Nakazato, K. Sumiyoshi and H. Shen,
"Effects of symmetry energy on the radius and tidal deformability of neutron stars",
Progress of Theoretical and Experimental Physics (2020) 043D01 (20 pages) -
C. Nagele, H. Umeda, K. Takahashi, T. Yoshida and K. Sumiyoshi,
"The final fate of supermassive M~5x10^4 M_sun Pop III stars: explosion or collapse?",
Monthly Notices of the Royal Astronomical Society 296 (2020) 1224-1231 -
A. Harada, H. Nagakura, W. Iwakami, H. Okawa, S. Furusawa, K. Sumiyoshi, H. Matsufuru and S. Yamada,
"The Boltzmann-radiation-hydrodynamics simulations of core-collapse supernovae with different equations of state: the role of the nuclear composition and the behavior of neutrinos",
Astrophysical Journal 902 (2020) 150 (25 pages) -
W. Iwakami, H. Okawa, H. Nagakura, A. Harada, S. Furusawa, K. Sumiyoshi, H. Matsufuru and S. Yamada,
"Simulations of the early post-bounce phase of core-collapse supernovae in three-dimensional space with full boltzmann neutrino transport",
Astrophysical Journal 903 (2020) 82 (24 pages) -
Y. Suwa, A. Harada, K. Nakazato and K. Sumiyoshi,
"Analytic solutions for neutrino-light curves of core-collapse supernovae",
Progress of Theoretical and Experimental Physics 2021 (2020) 013E01 (12 pages) -
K. Sumiyoshi, S. Fujibayashi, Y. Sekiguchi and M. Shibata,
"Properties of neutrino transfer in a deformed remnant from neutron star merger",
Astrophysical Journal 907 (2021) 92 (23 pages) -
M. Mori, Y. Suwa, K. Nakazato, K. Sumiyoshi, M. Harada, Y. Koshio, R. A. Wendell and A. Harada,
"Developing an end-to-end simulation framework of supernova neutrino detection",
Progress of Theoretical and Experimental Physics 2021 (2020) 023E01 (21 pages) -
R. Akaho, A. Harada, H. Nagakura, K. Sumiyoshi, W. Iwakami, H. Okawa, S. Furusawa, H. Matsufuru and S. Yamada,
"Multi-dimensional Boltzmann neutrino transport code in full general relativity for core-collapse simulations",
Astrophysical Journal 909 (2021) 210 (17 pages) -
A.Hiraguchi,K.Ishiguro and T.Suzuki, ,
"New Abelian-like monopoles and the dual Meissner effect",
Phys.Rev.D102 (2020), 114504-(1-9) -
A. Begun, A. Nakamura, V.G. Bornyakov, V.A. Goy, R.N. Rogalyov,
"Study of two color QCD on large lattices",
Phys. Rev. D -
M. Wakayama, S-i. Nam and A. Hosaka,
"Use of the canonical approach in effective models of QCD",
PHYSICAL REVIEW D 102, 034035 (2020)
(国際会議会議録掲載論文)
-
H. Matsufuru and K. Sumiyoshi,
"Acceleration of Boltzmann Equation for Core-Collapse Supernova Simulations on PEZY-SC Processors",
Lecture Notes in Computer Science book series, Vol. 12251 (2020) 177-192, -
M. Wakayama, Y. Murakami, A. Nakamura, M. Sekiguchi and H. Wada,
"Spectroscopy of a1 mesons from lattice QCD with the truncated overlap fermions",
World Scientific, Hadron2019, 104-108 (2020),Hadron2019
Posted : 2021年03月01日