ニュートリノ・核物理に基づいた超新星爆発および原子中性子星の研究
氏名:住吉光介
所属:沼津工業高等専門学校教養科
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)
-
S. Imaki, A. Yamamoto ,
"Lattice field theory with torsion",
Phys. Rev. D 100 (2019) 054509 -
Etsuko Itou,
"Fractional instanton of the SU(3) gauge theory in weak coupling regime",
JHEP1905(2019) 093 -
T. Fujimori, E. Itou, T. Misumi, M. Nitta, N. Sakai,
"Confinement-Deconfinement Crossover in the Lattice PN−1 Model",
Phys.Rev.D100(2019) 094506 -
K. Iida,E. Itou,T. Lee,
"Two-colour QCD phases and the topology at low temperature and high density",
JHEP 2001 (2020) 181 -
T. Yamaguchi, K. Asada, H. Yamakawa, T. Miyamoto, K. Iwano, T. Nakamura, N. Kida, and H. Okamoto,
"Photoexcitation of a one-dimensional polarization-inverted domain from the charge-ordered ferroelectric ground state of (TMTTF)2PF6",
Phys. Rev. B.99.245104 -
K. Iwano,
"Bloch Oscillations Due to Quantum Domain Breathing in One-Dimensional Electronic Photoinduced Phase Transitions",
Applied Sciences 2019, 9(12), 2461 -
S. Ohmura, A. Takahashi, K. Iwano, T. Yamaguchi, K. Shinjo, T. Tohyama, H. Okamoto, ,
"An effective charge model for the one-dimensional Hubbard and extended Hubbard models and its optical properties of large systems using many-body Wannier functions",
Phys. Rev. B100.235134(2019) -
M. Delfan Azari, S. Yamada, T. Morinaga, W. Iwakami, Wakana, H. Nagakura and K. Sumiyoshi,
"Linear analysis of fast-pairwise collective neutrino oscillations in core-collapse supernovae based on the results of Boltzmann simulations",
Physical Review D99 (2019) 103011 (25 pages) -
H. Nagakura, K. Sumiyoshi and S. Yamada,
"Three-dimensional Boltzmann-hydro code for core-collapse in massive stars III. new method of momentum feedback from neutrinos to matter",
Astrophysical Journal 878 (2019) 160 (10 pages) -
Y. Suwa, K. Sumiyoshi, K. Nakazato, Y. Takahira, Y. Koshio, M. Mori and R. A. Wendell,
"Observing supernova neutrino light curves with super-Kamiokande: expected event number over ten seconds",
Astrophysical Journal 881 (2019) 139 (16 pages) -
S. Abbar, H. Duan, K. Sumiyoshi, T. Takiwaki and M. C. Volpe,
"On the occurrence of fast neutrino flavor conversions in multidimensional supernova models",
Physical Review D 100 (2019) 043004 (7 pages) -
H. Nagakura, K. Sumiyoshi and S. Yamada,
"Possible early linear acceleration of proto-neutron stars via asymmetric neutrino emission in core-collapse supernovae",
Astrophysical Journal Letters 880 (2019) L28 (7 pages) -
H. Sotani and K. Sumiyoshi,
"Determination of properties of protoneutron stars toward black hole formation via gravitational wave observations",
Physical Review D100 (2019) 083008 (12 pages) -
K. Sumiyoshi, K. Nakazato, H. Suzuki, Jinniu Hu and H. Shen,
"Influence of density dependence of symmetry energy on supernova simulations",
Astrophysical Journal 887 (2019) 110 (17 pages) -
S. Furusawa, H. Togashi, K. Sumiyoshi, K. Saito, S. Yamada and H. Suzuki,
"Nuclear equations of state for astrophysical simulations based on a Dirac-Brueckner-Hartree-Fock calculation",
Progress of Theoretical and Experimental Physics (2020) 013D05 (15 pages) -
M. Delfan Azari, S. Yamada, T. Morinaga, H. Nagakura, S. Furusawa, A. Harada, H. Okawa, W. Iwakami and K. Sumiyoshi,
"Fast collective neutrino oscillations inside the neutrino sphere in core-collapse supernovae",
Physical Review D101 (2020) 023018 (12 pages) -
S. Abbar, H. Duan, K. Sumiyoshi, T. Takiwaki and M. C. Volpe,
"Fast neutrino flavor conversion modes in multidimensional core-collapse supernova models: The role of the asymmetric neutrino distributions",
Physical Review D101 (2020) 043016 (12 pages) -
H. Shen, F. Ji, J. Hu and K. Sumiyoshi,
"Effects of symmetry energy on equation of state for simulations of core-collapse supernovae and neutron-star mergers",
Astrophysical Journal 891 (2020) 148 (10 pages) -
K.Iida, E.Itou, T.-G.Lee,
"Two-colour QCD phases and the topology at low temperature and high density",
JHEP 2020, 181 (2020). -
"Search of QCD phase transition points in the canonical approach of the NJL model",
Phys. Lett. B795, 548-553 (2019) -
M. Wakayama, V. G. Bornyakov, D. L. Boyda, V. A. Goy, H. Iida, A. V. Molochkov,
A. Nakamura and V. I. Zakharov,
"Lee-Yang zeros in lattice QCD for searching phase transition points",
Phys. Lett. B793, 227-233 (2019)
(国際会議会議録掲載論文)
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Etsuko Itou,
"Resurgence and fractional instanton of the SU(3) gauge theory in weak coupling regime",
PoSLATTICE2019(0) 014,
37th International Symposium on Lattice Field Theory (LATTICE2019), 16-22 June 2019, Wuhan, China -
Tatsuhiro Misumi, Toshiaki Fujimori, Etsuko Itou, Muneto Nitta, Norisuke Sakai,
"Lattice study on the twisted PN−1 models on ×S1",
PoSLATTICE2019(0) 015,
37th International Symposium on Lattice Field Theory (LATTICE2019), 16-22 June 2019, Wuhan, China -
開田丈寛、河野宏明、高橋純一、八尋正信,
"有限密度における厳密なZ3対称性を持つ格子QCD計算",
原子核研究 2019年夏の学校特集号 pp.66-67, 2020年2月,
原子核三者若手夏の学校, 滋賀県 白浜荘, 2019年 8月5-10日 -
Hiroaki Wada, Yuko Murakami, Atsushi Nakamura, Motoo Sekiguchi, Masayuki Wakayama,
"Lattice study of meson properties at fine temperature using the truncated overlap fermions",
Proceedings of Science, (LATTICE2019)045 (2019),
37th International Symposium on Lattice Field Theory (LATTICE2019)
Posted : 2020年03月31日