@article{Mengesha_Mal’nev_2022, title={Two-Electron Quantum Dots with Parabolic Confinement (Low Lying Para- and Ortho-States)}, volume={56}, url={https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2021452}, DOI={10.15407/ujpe56.11.1228}, abstractNote={<p>Three low lying energy levels of a 3D two-electron quantum dot (QD) with parabolic confinement are obtained by the variational method. The proposed interpolation formulas for the variation parameters allow one to recover the energy levels in a wide range of the Coulomb interaction constant. The quantum states of the QD are divided into the para- and ortho-states like in the theory of helium atom. The quantum transitions from the ortho-state to the para-state are possible only with account of the spin-orbit interaction. At low temperatures, an ensemble of two-electron QDs contains dots in the ground para-state and in the first excited<br>ortho-state, which is metastable. These QDs have the entangled spin wave functions that are related to the Einstein–Podolsky–Rosen (EPR) states desirable for the quantum information protocol.</p>}, number={11}, journal={Ukrainian Journal of Physics}, author={Mengesha, Menberu and Mal’nev, V.N.}, year={2022}, month={Feb.}, pages={1228} }