Impurity with two electrons in the spherical quantum dot with Unite confinement potential

3rd International Symposium "Optics and its Applications"

Baghdasaryan, D.A.^1 ; Ghaltaghchyan, H.Ts.^1 ; Kazaryan, E.M.^1 ; Sarkisyan, H.A.^1,2,3

Russian-Armenian (Slavonic) University, Yerevan

0051, Armenia^1

Yerevan State University, Yerevan

0025, Armenia^2

Peter the Great Saint-Petersburg Polytechnic University, St.-Petersburg

195251, Russia^3

关键词: Confinement potential;    Effective mass;    Electron interaction;    Exchange-time;    Ground-state energies;    Hydrogenic impurities;    Spherical quantum dot;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/673/1/012018/pdf
DOI  :  10.1088/1742-6596/673/1/012018

来源: IOP

【 摘 要 】

Two-electron states in a spherical QD with the hydrogenic impurity located in the center and with a finite height confinement potential barrier are investigated. The effective mass mismatch have been taken into account. The dependence of ground state energy and Coulomb electron-electron interaction energy correction on the QD size is studied. The problem of the state exchange time control in QD is discussed, taking into account the spins of the electrons in the Russell-Saunders approximation. The effect of quantum emission has been shown.