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...

Dimitri Roditchev, Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris

February 20 at 2:00 pm (Paris time) Room Boreau, building C, 2nd floor Quantum vortices in superconductors : Microscopic insights The quantum (…) 

> Lire la suite...

Sven Badoux, Université de Sherbrooke

Jeudi 28 Septembre 2017 à 14h00 Amphi Urbain, Esc N 1ème etage Transport signatures of charge density wave order and the pseudogap critical point (…) 

> Lire la suite...