Small excitonic complexes in a disk-shaped quantum dot

2); (2) Universidad de Antioquia; Augusto Gonzalez (1) ((1) Centro de Matematicas y Fisica Teorica; Ciudad Habana; Colombia); Cuba; Medellin; Ricardo Perez (1

arxiv: cond-mat/9910518 · v1 · submitted 1999-11-01 · ❄️ cond-mat.mes-hall · cond-mat.str-el

Small excitonic complexes in a disk-shaped quantum dot

Ricardo Perez (1 , 2) , Augusto Gonzalez (1) ((1) Centro de Matematicas y Fisica Teorica , Ciudad Habana , Cuba , (2) Universidad de Antioquia , Medellin , Colombia) This is my paper

classification ❄️ cond-mat.mes-hall cond-mat.str-el

keywords complexesbindingexcitonicweakasymmetricbethe-goldstoneconfigurationsconfined

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Confined excitonic complexes in two dimensions, consisting of N_e electrons and N_h holes, are studied by means of Bethe-Goldstone equations. Systems with up to twelve pairs, and asymmetric configurations with N_e \ne N_h are considered. The weak confinement regime gives indication of weak binding or even unbinding in the triexciton and the four-exciton system, and binding in the higher complexes.

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Small excitonic complexes in a disk-shaped quantum dot

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