Spatially indirect exciton condensate in bilayer systems
ORAL
Abstract
Bilayer equilibrium exciton condensates have attracted attention in recent years because of their interesting and anomalous transport properties. Here we report on the microscopic derivation of bosonic effective Hamiltonians which include exciton-exciton interaction terms and account realistically for band-structure and dielectric environment effects. We describe in detail the microscopic origin of different contributions to exciton-exciton interaction. We apply our theory to the case of transition metal dichalcogenides, addressing specifically the role of the excitonic flavor multiplicity in that system.
–