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Mott transition in excitonic Bose polarons
E. A. Szwed, B. Vermilyea, D. J. Choksy +5
For a neutral system of positive and negative charges, such as atoms in a crystal, increasing the density causes the Mott transition from bound electrons to free electrons. The den…
Excitonic Bose-polarons in electron-hole bilayers
E. A. Szwed, B. Vermilyea, D. J. Choksy +6
Bose polarons are mobile impurities dressed by density fluctuations of a surrounding degenerate Bose gas. These many-body objects have been realized in ultracold atomic gasses and…
Fermi edge singularity in neutral electron-hole system
D. J. Choksy, E. A. Szwed, L. V. Butov +2
In neutral dense electron-hole (e-h) systems at low temperatures, theory predicts Cooper-pair-like excitons at the Fermi energy and a BCS-like exciton condensation. Optical excitat…