Distinct Rabi splitting in confined systems of MoSe2 monolayers and (Ga,In)As quantum wells

Felix Schäfer; Henry Mittenzwey; Markus Stein; Oliver Voigt; Lara Greten; Daniel Anders; Isabel Müller; Florian Dobener; Marzia Cuccu; Christian Fuchs; Kenji Watanabe; Takashi Taniguchi; Alexey Chernikov; Kerstin Volz; Andreas Knorr; Sangam Chatterjee

doi:10.1038/s41467-025-63098-7

Article Distinct Rabi splitting in confined systems of MoSe2 monolayers and (Ga,In)As quantum wells

Felix Schäfer ; Henry Mittenzwey ; Markus Stein ; Oliver Voigt ; Lara Greten ; Daniel Anders ; Isabel Müller ; Florian Dobener ; Marzia Cuccu ; Christian Fuchs ; Kenji Watanabe (National Institute for Materials Science) ; Takashi Taniguchi (National Institute for Materials Science) ; Alexey Chernikov ; Kerstin Volz ; Andreas Knorr ; Sangam Chatterjee

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Felix Schäfer, Henry Mittenzwey, Markus Stein, Oliver Voigt, Lara Greten, Daniel Anders, Isabel Müller, Florian Dobener, Marzia Cuccu, Christian Fuchs, Kenji Watanabe, Takashi Taniguchi, Alexey Chernikov, Kerstin Volz, Andreas Knorr, Sangam Chatterjee. Distinct Rabi splitting in confined systems of MoSe2 monolayers and (Ga,In)As quantum wells. Nature Communications. 2025, 16 (), 8109. https://doi.org/10.1038/s41467-025-63098-7

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Rabi splitting, a fundamental phenomenon in light-matter interaction, occurs when a two-level system is resonantly driven, creating doublets separated by the Rabi energy. We investigate the Rabi splitting dynamics in two paradigmatic 2D solid-state systems: a hBN-encapsulated MoSe2 monolayer and an ultra-high-quality (Ga,In)As multiple quantum well structure. These systems show features beyond the Rabi splitting such as asymmetric Rabi oscillations in the time domain, the emergence of additional spectral resonances, and coherent gain. A microscopic theory reveals their inherent many-body origins.

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