Published October 16, 2019
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Exciton–Exciton Interactions in Coaxial Double Quantum Rings
- 1. Faculty of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia
- 2. Faculty of Physics, Yerevan State University, Yerevan 0025, Armenia
- 3. Science Institute, University of Iceland, IS-107 Reykjavik, Iceland
- 4. Institute of Engineering and Physics, Russian–Armenian (Slavonic) University, Yerevan 0026, Armenia
Description
We study theoretically the quantum states of two interacting excitons in coaxial double quantum rings. An interplay between exciton–exciton Coulomb interactions and specific geometry of the structure leads to the emergence of peculiar energy spectrum of two exciton system. We develop a semi-analytic approach providing highly accurate energies of system in the wide range of values of geometrical parameters relevant to experimental realizations.
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