Principal Investigator: Prof. Dr. Felix von Oppen

Located at: Freie Universität Berlin

Project B06 studies how excitonic insulators in 2D materials, like TiSe₂, interact with molecular donors and acceptors—from single molecules to disordered arrays. It explores how these adsorbates affect exciton stability and scattering, aiming to identify clear experimental signatures of excitonic insulator states.

Theoretical methods: Mean field theory, Keldysh method (tunneling Hamiltonian), Bogoliubov-de-Gennes formalism, Green-function techniques