Valley-mediated singlet- and triplet-polaron interactions and quantum
dynamics in a doped WSe$_2$ monolayer
Valley-mediated singlet- and triplet-polaron interactions and quantum
dynamics in a doped WSe$_2$ monolayer
In doped transition metal dichalcogenides, optically created excitons (bound electron-hole pairs) can strongly interact with a Fermi sea of electrons to form Fermi polaron quasiparticles. When there are two distinct Fermi seas, as is the case in WSe$_2$, there are two flavors of lowest-energy (attractive) polarons -- singlet and triplet …