Time-resolved spectroscopy reveals that Rydberg excitons in WSe2 form Fermi polarons with the moiré Fermi sea of twisted bilayer graphene on a picosecond timescale, with the binding energy and relaxation rate increasing with doping.
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Observing the Birth of Rydberg Exciton Fermi Polarons on a Moire Fermi Sea
Time-resolved spectroscopy reveals that Rydberg excitons in WSe2 form Fermi polarons with the moiré Fermi sea of twisted bilayer graphene on a picosecond timescale, with the binding energy and relaxation rate increasing with doping.