Intraband Linewidths of the Optical Conductivity in Quantum Wells Due to LO Phonon Scattering

다국어 초록 (Multilingual Abstract)

Based on the quantum statistical operator algebra technique, we derive new intraband linewidths
for the optical conductivity in a system of electrons interacting with longitudinal optical (LO)
phonons in a quantum well. The electron and phonon distribution functions are included in the
line-shape function, so we can explain the phonon absorption and emission in an organized way for
all the electron transition processes. The numerical result shows that the width decreases with the
well width and increases with the temperature and that hole - LO phonon scattering dominate the
broadening.