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- W4320558441 abstract "The energy band structure of excitons is studied in periodic potentials produced by the short-range interaction between the exciton and electrons of Wigner or Moir'{e} lattices. Treating the exciton as a point-like dipole that interacts with the periodic potential, we can solve a simple one-body problem that provides valuable information on excitons in many-body problem settings. By employing group theory, we identify the excitonic energy bands that can couple to light and then quantify their energy shifts in response to a change in the period of the potential. This approach allows us to emulate the response of optically active exciton and trion states to a change in electron density. We gain important insights on the relation between the electron order in a Wigner crystal and the energy blueshift of the bright exciton. We discuss the consequences of this relation in the context of optical absorption experiments in monolayer semiconductors." @default.
- W4320558441 created "2023-02-14" @default.
- W4320558441 creator A5011287563 @default.
- W4320558441 creator A5053462701 @default.
- W4320558441 date "2023-02-09" @default.
- W4320558441 modified "2023-09-29" @default.
- W4320558441 title "Excitons in periodic potentials" @default.
- W4320558441 doi "https://doi.org/10.48550/arxiv.2302.04902" @default.
- W4320558441 hasPublicationYear "2023" @default.
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