Open AccessOn the Quadron State in Parabolic Quantum Dots
Author(s) -
Nguyễn Hồng Quang,
Tran Anh Dung
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1932/1/012011
Subject(s) - biexciton , quantum dot , excited state , binding energy , electron , physics , atomic physics , oscillator strength , range (aeronautics) , condensed matter physics , quantum mechanics , materials science , composite material , spectral line
In this work we consider a quadron – a state of four carriers – two electrons and two holes in quantum dots with parabolic confinement. By using the Hatree-Fock method, the binding energies of the quadron and biexciton have been calculated for a full range of the electron-to-hole oscillator length ratio. The effect of the magnetic field on the binding energy of the quadron and biexciton has been also investigated. The crossing between anti-binding and binding in both the excited quadron and biexciton states for the certain ranges of the electron-to-hole oscillator length ratio has been found.