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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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Citation:

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).

Abstract:

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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