Structure of the magnetoexciton and optical properties in fractional quantum Hall systems

Abstract
We report the calculated dependence of the magnetoexciton energy spectrum upon electron-hole separation d in fractional quantum Hall systems. We calculated the dependence of the photoluminescence upon d, and we obtained the doublet structure observed recently. The Raman-scattering spectrum around resonance is calculated: a robust resonance peak at ν=1/3 around the gap value is reported.
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