François Dubin, INSP Paris

Thursday September 23 at 2:00 pm (GMT+2) Paris time

From Superfluids to Mott Insulators with Dipolar Excitons

Semiconductor excitons are composite bosons made by the Coulomb attraction between electrons and holes. Enforcing a spatial separation between these carriers provides a well oriented electric dipole to excitons, which then become model dipolar quasi-particles to explore collective quantum phenomena in the solid-state. In this presentation I will illustrate this assertion by presenting recent experiments where dipolar excitons are confined in two-dimensional lattice potentials with tailored geometries. Varying the excitonic density, we will then reveal that ultra-cold exciton gases evolve from the superfluid to the Mott insulating regime.


Haut de page



À lire aussi...

Zijun Wang, Institut Mondor de Recherche Biomédicale, INSERM, UPEC

Monday January 15 at 2:00 pm (Paris time) Room Charpak, Entrance building, ground floor Polarized Nano-Emitters as Orientation Probes in (...) 

> Lire la suite...

Gilles Montambaux

Jeudi 06/06 à 14h00, à 14h00 Amphi Boreau escalier, c 2eme etage La loi de Stefan-Boltzmann généralisée et quelques remarques sur les origines de la (...) 

> Lire la suite...