Communications in Theoretical Physics
• • Previous Articles Next Articles
XIE Wen-Fang
Received:
Revised:
Published:
Abstract: The helium atom confined by a non-impenetrable spherical box, i.e., a spherical Gaussian potential well which possesses finite height and range, is studied employing the exact diagonalization method. Total energies of the ground and three low-excited states are obtained as a function of the confined potential radii. We find that the confinement may cause accidental degeneracies between levels with different low-excited states and the inversion of the energy values. The results for the three-dimensional spherical potential well and the two-dimensional disc-like potential well are compared with each other: in general, the energies of the states decrease and the energy intervals between states increase with the reduction of the space dimensions.
Key words: helium atom, energy spectrum
PACS numbers:
XIE Wen-Fang, Commun. Theor. Phys. 49 (2008) 1287.
0 / / Recommend
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks
URL: https://ctp.itp.ac.cn/EN/
https://ctp.itp.ac.cn/EN/Y2008/V49/I05/1287
Cited