@article{oai:tsukuba.repo.nii.ac.jp:00020594,
author = {前島, 展也 and 日野, 健一 and Maeshima, N. and Hino, K. and Yonemitsu, K.},
issue = {16},
journal = {Physical review B},
month = {Oct},
note = {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 Schrödinger equation for the numerically exact many-electron wave function, we obtain time-dependent optical response functions. The calculated spectra show characteristic coherent oscillations that vary with the frequency of probe light. A simple analysis for the dominant oscillating components clarifies that these photoinduced oscillations are caused by the quantum interference between photogenerated states. The oscillation attributed to the Raman-active orbital excitations (orbitons) clearly appears around the charge-transfer peak.},
title = {Photoinduced coherent oscillations in the one-dimensional two-orbital Hubbard model},
volume = {82},
year = {2010}
}