Háskóli ÍslandsUniversity of IcelandShahnazaryan, VanikMughnetsyan, VramShelykh, IvanSarkisyan, Hayk2020-03-202020-03-202019-10-16Shahnazaryan, V. et al., 2019. Exciton-Exciton Interactions in Coaxial Double Quantum Rings. Nanomaterials (Basel, Switzerland), 9(10), pp.Nanomaterials (Basel, Switzerland), October 16, 2019, Vol.9(10).2079-4991https://hdl.handle.net/20.500.11815/1625Publisher's version (útgefin grein)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.1469eninfo:eu-repo/semantics/openAccessCoulomb interactionsExcitonQuantum ringSkammtafræðiinfo:eu-repo/semantics/articleNanomaterials10.3390/nano9101469