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Lattice exciton-polaron problem by quantum Monte Carlo simulations

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 نشر من قبل Martin Hohenadler
 تاريخ النشر 2007
  مجال البحث فيزياء
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Exciton-polaron formation in one-dimensional lattice models with short or long-range carrier-phonon interaction is studied by quantum Monte Carlo simulations. Depending on the relative sign of electron and hole-phonon coupling, the exciton-polaron size increases or decreases with increasing interaction strength. Quantum phonon fluctuations determine the (exciton-)polaron size and yield translation-invariant states at all finite couplings.



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