Mass imbalance and Coulomb strength control a BCS-BEC crossover in polaritonic condensates, with semiconductors favoring BEC-like excitonic states at low density and semimetals favoring BCS pairing except at strong interactions and large imbalance.
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BCS-BEC crossover of polaritonic condensates in mass-imbalanced semimetal/semiconductor microcavities
Mass imbalance and Coulomb strength control a BCS-BEC crossover in polaritonic condensates, with semiconductors favoring BEC-like excitonic states at low density and semimetals favoring BCS pairing except at strong interactions and large imbalance.