Generalized Mott transition observed in Bose-polaron absorption
ORAL
Abstract
Cold neutral electron-hole systems in electron-hole bilayers in GaAs heterostructure were studied. The attractive and repulsive Bose-polarons in the spatially direct absorption (photoluminescence excitation spectra) were found. The Bose-polarons are formed by spatially direct excitons (DXs) dressed by excitations of the surrounding Bose gas of spatially indirect excitons (IXs) [E.A. Szwed et. al., Nano Lett. (2024) https://doi.org/10.1021/acs.nanolett.4c03288]. We measured how the polaron peaks vanish with increasing temperature and IX density and analyzed the generalized Mott transition in Bose-polarons.
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Publication: E.A. Szwed et. al., Nano Lett. (2024) https://doi.org/10.1021/acs.nanolett.4c03288
Presenters
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Erik A Szwed
University of California, San Diego
Authors
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Erik A Szwed
University of California, San Diego
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Brian Vermilyea
University of California, San Diego
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Darius J Choksy
Quantum Design Inc.
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Zhiwen Zhou
University of California, San Diego
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Michael M Fogler
University of California, San Diego
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Leonid V Butov
University of California, San Diego
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Dmitry K Efimkin
Monash University
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Kirk W Baldwin
Princeton University
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Loren N Pfeiffer
Princeton University