Abstract
AbstractIn this contribution we consider small ensembles of optically excited indirect excitons in a single quantum well. Using Path Integral Monte Carlo we compute from first principles the spatial separation of electrons and holes and the lateral quantum Stark confinement of the excitons in the quantum well which is produced by an external electric field of a single tip electrode. By changing the field strength, the tip to sample distance, the excitation intensity (exciton number) and temperature, the exciton–exciton correlations can be varied in broad ranges. Discussing two different semiconductor quantum well heterostructures (GaAs/AlGaAs and ZnSe/ZnSSe) we propose a possible setup which should allow to observe in experiments interesting many‐particle phenomena. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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