DQMP Seminar - Towards On-demand Quantum Matter and Light with 2D Materials

12.05.2022 11:30 – 13:00

Atomically thin materials, such as graphene and transitional metal dichalcogenides (TMDs), have recently come to the forefront of research in materials physics. This is largely due to the ease with which they can be combined into artificially engineered heterostructures that exhibit emergent electronic and optical properties. Enhanced Coulomb interactions in the truly 2D limit makes heterostructures of TMDs, such as MoSe2/WSe2, promising to explore correlated quantum phases of matter. Moreover, strong light-matter coupling results in stable optically excited quasiparticles such excitons and their neutral and charged complexes. While electronic phases have garnered a lot of attention, many-body correlated phases of interacting optical excitations remain poorly studied. These out-of-equilibrium quantum phases could serve as sources of exotic light.

In this talk, I will begin by highlighting some unique properties of excitons in TMDs. Next, I will talk about few-body and many-body interactions amongst them and our recent efforts to tune the strength and sign of these interactions, crucial for realizing on-demand quantum matter in a driven-dissipative setting. Finally, I will show how trapped dipolar excitons can serve as high-resolution quantum sensors of correlated electronic phenomena.

Lieu

Bâtiment: Ecole de Physique

Salle MaNEP

entrée libre