5 citations · 6 across the 2 of their papers we have counts for
5 papers
Edge states of Floquet-Dirac semimetal in a laser-driven semiconductor quantum-well
Boyuan Zhang, Nobuya Maeshima, Ken-ichi Hino
Band crossings observed in a wide range of condensed matter systems are recognized as a key to understand low-energy fermionic excitations that behave as massless Dirac particles.…
Dynamical Charge Structure Factor of a One-Dimensional Ionic Hubbard Model in the Low-Energy Region
Yuhei Komaki, Yuma Iwase, Shogo Yanagimatsu +3
We present a numerical study of the charge dynamical structure factor N(k,omega) of a one-dimensional (1D) ionic Hubbard model in the Mott insulator phase. We show that the low-ene…
Ultrafast asymmetric Rosen-Zener-like coherent phonon responses observed in silicon
Yohei Watanabe, Ken-ichi Hino, Nobuya Maeshima +2
We investigate the spectral profiles of time signals attributed to coherent phonon generation in an undoped Si crystal. Here, the retarded longitudinal-optical (LO) phonon Green fu…
Irregular Oscillatory-Patterns in the Early-Time Region of Coherent Phonon Generation in Silicon
Yohei Watanabe, Ken-ichi Hino, Muneaki Hase +1
Coherent phonon (CP) generation in an undoped Si crystal is theoretically investigated to shed light on unexplored quantum-mechanical effects in the early-time region immediately a…
Photoinduced coherent oscillations in the one-dimensional two-orbital Hubbard model
Nobuya Maeshima, Ken-ichi Hino, Kenji Yonemitsu
We study photoinduced ultrafast coherent oscillations originating from orbital degrees of freedom in the one-dimensional two-orbital Hubbard model. By solving the time-dependent Sc…