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Title: Computational modeling of electrophotonics nanomaterials: Tunneling in double quantum dots

Single electron localization and tunneling in double quantum dots (DQD) and rings (DQR) and in particular the localized-delocalized states and their spectral distributions are considered in dependence on the geometry of the DQDs (DQRs). The effect of violation of symmetry of DQDs geometry on the tunneling is studied in details. The cases of regular and chaotic geometries are considered. It will be shown that a small violation of symmetry drastically affects localization of electron and that anti-crossing of the levels is the mechanism of tunneling between the localized and delocalized states in DQRs.
Authors:
;  [1]
  1. Department of Physics, North Carolina Central University, 1801 Fayetteville Street, Durham, North Carolina 27707 (United States)
Publication Date:
OSTI Identifier:
22307965
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1618; Journal Issue: 1; Conference: ICCMSE 2014: International conference on computational methods in science and engineering 2014, Athens (Greece), 4-7 Apr 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CHAOS THEORY; ELECTRONS; ENERGY LEVELS; GEOMETRY; QUANTUM DOTS; SYMMETRY; SYMMETRY BREAKING; TUNNEL EFFECT