72 citations · 600 across the 20 of their papers we have counts for
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Excitons and biexcitons in symmetric electron-hole bilayers
Ryo Maezono, Pablo López Ríos, Tetsuo Ogawa +1
Symmetric electron-hole bilayer systems have been studied at zero temperature using the diffusion quantum Monte Carlo method. A flexible trial wave function is used that can descri…
Excitonic BCS-BEC crossover at finite temperature: Effects of repulsion and electron-hole mass difference
Yuh Tomio, Kotaro Honda, Tetsuo Ogawa
The BCS to Bose-Einstein condensation (BEC) crossover of electron-hole (e-h) pairs in optically excited semiconductors is studied using the two-band Hubbard model with both repulsi…
Instability toward biexciton crystallization in one-dimensional electron-hole systems
Kenichi Asano, Tetsuo Ogawa
One-dimensional (1D) electron-hole (e-h) systems in a high-density regime is investigated by means of bozonization techniques. It turned out that the systems are insulating even at…
Phase diagram for the exciton Mott transition in infinite-dimensional electron-hole systems
Yuh Tomio, Tetsuo Ogawa
To understand the essence of the exciton Mott transition in three-dimensional electron-hole systems, the metal-insulator transition is studied for a two-band Hubbard model in infin…