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Pré-Publication, Document De Travail Année : 2020

Quasi-condensation of bilayer excitons in a periodic potential

Camille Lagoin
  • Fonction : Auteur
Stephan Suffit
Kenneth West
  • Fonction : Auteur
Kirk Baldwin
  • Fonction : Auteur
Loren Pfeiffer
  • Fonction : Auteur
Francois Dubin
  • Fonction : Auteur

Résumé

We study two-dimensional excitons confined in a lattice potential, for high fillings of the lattice sites. We show that a quasi-condensate is possibly formed for small values of the lattice depth, but for larger ones the critical phase-space density for quasi-condensation rapidly exceeds our experimental reach, due to the increase of the excitons effective mass. On the other hand, in the regime of a deep lattice potential where excitons are strongly localised at the lattice sites, we show that an array of phase-independent quasi-condensates, different from a Mott insulating phase, is realised.

Dates et versions

hal-02994353 , version 1 (07-11-2020)

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Citer

Markus Holzmann, Camille Lagoin, Stephan Suffit, Kenneth West, Kirk Baldwin, et al.. Quasi-condensation of bilayer excitons in a periodic potential. 2020. ⟨hal-02994353⟩

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