149 citations · 554 across the 28 of their papers we have counts for
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Spin texture and spin current in excitonic phases of the two-band Hubbard model
Hisao Nishida, Shohei Miyakoshi, Tatsuya Kaneko +2
Using the mean-field approximation, we study the -space spin textures and local spin currents emerged in the spin-triplet excitonic insulator states of the two-band Hubbard mode…
Nonequilibrium dynamics in the pump-probe spectroscopy of excitonic insulators
Tetsuhiro Tanabe, Koudai Sugimoto, Yukinori Ohta
We study the nonequilibrium dynamics in the pump-probe spectroscopy of excitonic insulators using the spinless two-orbital model with phonon degrees of freedom in the time-dependen…
Strong Coupling Nature of the Excitonic Insulator State in TaNiSe
K. Sugimoto, S. Nishimoto, T. Kaneko +1
We analyze the measured optical conductivity spectra using the density-functional-theory-based electronic structure calculation and density-matrix renormalization group calculation…
Excitonic Order and Superconductivity in the Two-Orbital Hubbard Model: Variational Cluster Approach
Ryo Fujiuchi, Koudai Sugimoto, Yukinori Ohta
Using the variational cluster approach based on the self-energy functional theory, we study the possible occurrence of excitonic order and superconductivity in the two-orbital Hubb…