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...

Johann Coraux, Institut Néel, Grenoble, France

March 25, 2021 02:00 PM Paris (GMT +1) Chromium ditelluride : A van der Waals ferromagnet up to room temperature, down to the 2D limit ? In (...) 

> Lire la suite...

Masoumeh Keshavarz, Molecular Imaging and Photonics, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium

Shedding light on the optoelectronic and structural properties of halide perovskites January 21, 02:00 PM, Paris Time (GMT +1) The extraordinary (...) 

> Lire la suite...