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Exciton–Exciton Interactions in Coaxial Double Quantum Rings

Exciton–Exciton Interactions in Coaxial Double Quantum Rings

Title: Exciton–Exciton Interactions in Coaxial Double Quantum Rings
Author: Shahnazaryan, Vanik   orcid.org/0000-0001-7892-0550
Mughnetsyan, Vram
Shelykh, Ivan   orcid.org/0000-0001-5393-821X
Sarkisyan, Hayk
Date: 2019-10-16
Language: English
Scope: 1469
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Raunvísindastofnun (HÍ)
Science Institute (UI)
Series: Nanomaterials;9(10)
ISSN: 2079-4991
DOI: 10.3390/nano9101469
Subject: Coulomb interactions; Exciton; Quantum ring; Skammtafræði
URI: https://hdl.handle.net/20.500.11815/1625

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Shahnazaryan, 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).


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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