菅誠一郎

研究者氏名	菅誠一郎
	スガセイイチロウ
URL	http://www.eng.u-hyogo.ac.jp/msc/msc11/index.html
所属	兵庫県立大学
部署	大学院工学研究科
職名	教授
学位	工学博士(大阪大学)
J-Global ID	201801002250592982

研究キーワード

量子スピン系 ,強相関電子系

研究分野

自然科学一般 / 磁性、超伝導、強相関系 / 物性理論

経歴

2009年

現在

兵庫県立大学大学院工学研究科教授

2002年

2009年

大阪大学工学部・大学院工学研究科助教授・准教授

1988年

2002年

大阪大学工学部助手・講師

論文

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Spatial Fluctuations in Two-Orbital Hubbard Model

Tomoko Kita Takuma Ohashi Sei-ichiro Suga

INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009) 200 2010年 [査読有り]

We study spin and orbital correlations in the two-orbital Hubbard model with the different bandwidths at quarter filling by means of the cellular dynamical mean field theory combined with the noncrossing approximation. We demonstrate that the ferr...

Cellular Dynamical Mean Field Study on Two-Orbital Hubbard Model with Different Bandwidths

Tomoko Kita Takuma Ohashi Sei-ichiro Suga

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 79(1) 2010年1月 [査読有り]

We study spin and orbital correlations in the two-orbital Hubbard model with different bandwidths at quarter filling by means of the cellular dynamical mean field theory combined with the noncrossing approximation. We show that the ferromagnetic-a...

Finite-temperature properties of attractive three-component fermionic atoms in optical lattices

Kensuke Inaba Sei-ichiro Suga

PHYSICAL REVIEW A 80(4) 2009年10月 [査読有り]

We investigate the finite-temperature properties of attractive three-component (colors) fermionic atoms in optical lattices using a self-energy functional approach. As the strength of the attractive interaction increases in the low-temperature reg...

Universal Temperature Dependence of Electron Number in One-Dimensional Hubbard Model

Jun Maeda Sei-ichiro Suga

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 78(10) 2009年10月 [査読有り]

We investigate the temperature region in which a Tomonaga-Luttinger liquid (TLL) description of the charge sector of the one-dimensional Hubbard model is valid. By using the thermodynamic Bethe ansatz method, electron number is calculated at finit...

Spatial fluctuations of spin and orbital nature in the two-orbital Hubbard model

Tomoko Kita Takuma Ohashi Sei-Ichiro Suga

Physical Review B - Condensed Matter and Materials Physics 79(24) 2009年6月 [査読有り]

We investigate the quasiparticle dynamics in the two-orbital Hubbard model on the square lattice at quarter filling by means of the cellular dynamical mean-field theory. We show that the Fermi-liquid state is stabilized up to the large Hubbard int...