Interactions between out-of-plane dipoles in bosonic gases enable the long-range
propagation of excitons. The lack of direct control over collective dipolar properties has so …

Nonlinear interactions between excitons strongly coupled to light are key for accessing
quantum many-body phenomena in polariton systems. Atomically-thin two-dimensional …

Dipolar bosonic gases are currently the focus of intensive research due to their interesting
many-body physics in the quantum regime. Their experimental embodiments range from …

Atomically thin semiconductors such as transition metal dichalcogenide (TMD) monolayers
exhibit a very strong Coulomb interaction, giving rise to a rich exciton landscape. This makes …

We study theoretically the Coulomb interaction between excitons in transition metal
dichalcogenide (TMD) monolayers. We calculate direct and exchange interaction for both …

We present a practical scheme for creating topological polaritons in garden-variety systems
based, for example, on zinc-blende semiconductor quantum wells. Our proposal requires a …

Van der Waals heterostructures constitute a platform for investigating intriguing many-body
quantum phenomena. In particular, transition-metal dichalcogenide (TMD) heterobilayers …

Nonperturbative coupling between cavity photons and excitons leads to the formation of
hybrid light-matter excitations, termed polaritons. In structures where photon absorption …

Exciton-polaritons are mutually interacting quantum hybridizations of confined photons and
electronic excitations. Here, we demonstrate a system of optically guided, electrically …

Monitoring of the spatially resolved exciton spin dynamics in two-dimensional
semiconductors has revealed the formation of a spatial pattern and long-range transport of …