96 citations · 226 across the 11 of their papers we have counts for
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Robustness of equilibrium off-diagonal current fluctuation against localization of electron states in macroscopic two-dimensional systems
Kentaro Kubo, Kenichi Asano, Akira Shimizu
We study the off-diagonal current fluctuation in a macroscopic quantum system measured in an ideal manner that is as close as possible to the classical ideal measurement. We show r…
Nonlinear Photoluminescence Properties of Trions in Hole-doped Single-walled Carbon Nanotubes
Naoto Akizuki, Munechiyo Iwamura, Shinichiro Mouri +7
We studied the excitation density dependence of photoluminescence (PL) spectra of excitons and trions (charged excitons) in hole-doped single-walled carbon nanotubes. We found that…
Quantum condensation in electron-hole bilayers with density imbalance
Kazuo Yamashita, Kenichi Asano, Takuma Ohashi
We study the two-dimensional spatially separated electron-hole system with density imbalance at absolute zero temperature. By means of the mean-field theory, we find that the Fulde…
Evolution of excitons via biexcitons to an electron-hole plasma without level crossing between band edge and exciton in a quantum wire
Masahiro Yoshita, Yuhei Hayamizu, Hidefumi Akiyama +4
A recent single quantum wire is of sufficient quality to reveal new details of the photoluminescence (PL) evolution with increasing electron--hole (e--h) pair density. At a pair de…