研究室・研究グループ紹介：物理学教室

物理学教室のスタッフは、基礎物理学に関連した以下のような研究を進めています。

遠山　満　特任教授	時間に依存する量子多体問題の手法を用いた原子核の構造と運動の理論的研究
高原 哲士　准教授	平均場理論、密度汎関数法による原子核構造の理論的研究
大谷 宗久　准教授	核子および中間子の性質や構造の解析 カイラル対称性と質量起源に関する理論的研究

業績

1. Tohyama M: Extended random-phase-approximation study of the fragmentation of the giant quadrupole resonance in 16O. Phys. Rec. C 106: L011302-1-4, 2022.
2. Tohyama M: Effects of ground-state correlations on damping of giant dipole resonances in LS closed shell nuclei. Prog. Theor. Exp. Phys. 2022: ptac0371, 2022.
3. Schuck P, Delion D S, Dukelsky J, Jemai M, Litvinova E, Röpke G, Tohyama M: Equation of motion method for strongly correlated Fermi systems and extended RPA approaches. Phys. Rep. 929: 1-84, 2021. https://doi.org/10.1016/j.physrep.2021.06.001.
4. Tohyama M: Properties of Skyrme force as a residual interaction in beyond-mean-field theories. Prog. Theor. Exp. 2021: ptab092, 2021.
5. Tohyama M: Applications of time-dependent density-matrix approach. Front. Phys. 8:67, 2020.
6. Tohyama M & Schuck P: Truncation scheme of time-dependent density-matrix approach III. Eur. Phys. J. A 55: 74-1-11, 2019.
7. Tohyama M: Effects of ground-state correlations on dipole and quadrupole excitations of 40Ca and 48Ca. Prog. Theor. Exp. 2018: pty035, 2018.
8. Takahara S, Tajima N & Shimizu R Y: Nuclear prolate-shape dominance with the Woods-Saxon potential. Phys. Rev. C 86:064323, 2012.
9. Takahara S, Onishi N, Shimizu R Y & Tajima N: The role of spin-orbit potential in nuclear prolate-shape dominance. Phys. Lett. B 702: 429, 2011.
10. Tajima N, Shimizu R Y & Takahara S: Improved microscopic-macroscopic approach incorporating the effects of continuum states. Phys. Rev. C 82:034316, 2010.
11. Takahara S, Tohyama M: Extended RPA with ground-state correlations in a solvable model. Phys. Rev. C 70:057307, 2004.
12. Takahara S, Tajima N, Onishi N: Study of superdeformation in non-rotating states using the Skyrme-Hartree-Fock method. Nucl. Phys. A642:461, 1998.
13. Sano T, Fujii H and Ohtani M: UA(1) breaking and phase transition in chiral random matrix model. Phys. Rev. D80:034007-1-9, 2009.
14. Lehner C, Ohtani M, Verbaarschot J.J.M & Wettig T: Topology and chiral random matrix theory at nonzero imaginary chemical potential. Phys Rev D79: 074016-1-11, 2009.
15. Ohtani M, Lehner C, Wettig T & Hatsuda T: Topological susceptibility at finite temperature in a random matrix model. Mod Phys Lett A23: 2465-2468, 2008.
16. Broemmel D, Goeckeler M, Haegler Ph, Horsley R, Nakamura Y, Ohtani M, Pleiter D, Rakow P, Schaefer A, Schierholz G, Schroers W, Stueben H & Zanotti J: Hadronic Structure from the lattice. Eur Phys J ST 162: 63-71, 2008.
17. Iwazaki A, Morimatsu O, Nishikawa T & Ohtani M: Color Ferromagnetic Quark Matter in Neutron Stars. Int J Mod Phys A22: 721-730, 2007.