Optical properties and single-electron states of the nanosystem that contains three quantum dots

Abstract

The quantum molecule consisting of three quantum dots that forms a triangle with its centers is studied. The electron wave function in the nanosystem is written using the linear combination of orbital quantum wells. The dispersion equation for numerical calculations of the electron stationary states in a quantum molecule is found. A numerical calculation of the electron energy spectrum in the molecule formed by three quantum dots of a spherical shape is carried out. The influence of the nanocrystal size, the distance between them and the symmetry of the quantum molecule on the electron energy spectrum is studied. The cases of symmetry of an equilateral and an isosceles triangle are considered.

arXiv comment9 pages, 7 figures

References in corpus (8)

• Quantum Computation with Quantum Dots
• Conditional Quantum Dynamics and Logic Gates
• Singlet-triplet spin blockade and charge sensing in a few-electron double quantum dot
• Quantum Information in Semiconductors: Noiseless Encoding in a Quantum-Dot Array
• Three and Four-Body Interactions in Spin-Based Quantum Computers
• Non-invasive detection of molecular bonds in quantum dots
• Analysis of the effect of polarization traps and shallow impurities on the interlevel light absorption of quantum dots
• Energy spectra of three electrons in SiGe/Si/SiGe laterally coupled triple quantum dots