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Propagation of Coulomb-correlated electron-hole pairs in semiconductors with correlated and anticorrelated disorder

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 نشر من قبل Dr. Imre Varga
 تاريخ النشر 2000
  مجال البحث فيزياء
والبحث باللغة English
 تأليف P. Thomas




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Local ultrafast optical excitation of electron-hole pairs in disordered semiconductors provides the possibility to observe experimentally interaction-assisted propagation of correlated quantum particles in a disordered environment. In addition to the interaction driven delocalization known for the conventional single-band TIP-(two-interacting-particles)-problem the semiconductor model has a richer variety of physical parameters that give rise to new features in the temporal dynamics. These include different masses, correlated vs. anticorrelated disorder for the two particles, and dependence on spectral position of excitation pulse.



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