73 citations · 1.1k across the 69 of their papers we have counts for
6 papers · 1 filter
Photoinduced Dynamics of Commensurate Charge Density Wave in 1T-TaS Based on Three-Orbital Hubbard Model
Tatsuhiko N. Ikeda, Hirokazu Tsunetsugu, Kenji Yonemitsu
We study the coupled charge-lattice dynamics in the commensurate charge density wave (CDW) phase of the layered compound 1T-TaS driven by an ultrashort laser pulse. For descr…
Charge Oscillations Emerging after Application of an Intense Light Field to Superconductors on a Dimer Lattice
Kenji Yonemitsu
Motivated by recent experimental findings for an organic superconductor, charge oscillations that emerge after a strong pulse of an oscillating electric field is applied are studie…
Strong light-field effects driven by nearly single-cycle 7-fs light field in correlated organic conductors
Yohei Kawakami, Hirotake Itoh, Kenji Yonemitsu +1
We have demonstrated transient charge localization effects with a driving high-frequency field of 7-fs, 1.5-cycle near infrared light in correlated organic conductors. In a layered…
Non-linear charge oscillation driven by a single-cycle light-field in an organic superconductor
Y. Kawakami, T. Amano, Y. Yoneyama +11
Intense light-field application to solids produces enormous/ultrafast non-linear phenomena such as high-harmonic generations 1, 2 and attosecond charge dynamics 3, 4. They are dist…
Photoinduced High-Frequency Charge Oscillations in Dimerized Systems
Kenji Yonemitsu
Photoinduced charge dynamics in dimerized systems is studied on the basis of the exact diagonalization method and the time-dependent Schrödinger equation for a one-dimensional spin…
Photoinduced enhancement of excitonic order in the two-orbital Hubbard model
Yasuhiro Tanaka, Manabu Daira, Kenji Yonemitsu
Photoinduced dynamics in an excitonic insulator is studied theoretically by using a two-orbital Hubbard model on the square lattice where the excitonic phase in the ground state is…