Field shifts and lowest order QED corrections for the ground 1 {sup 1}S and 2 {sup 3}S states of the helium atoms
- Department of Applied Mathematics, University of Western Ontario, London, Ontario N6A 5B7 (Canada)
The bound state properties of the ground 1 {sup 1}S(L=0) state and the lowest triplet 2 {sup 3}S(L=0) state of the {sup 3}He, {sup 4}He, and {sup {infinity}}He helium atoms are determined to very high accuracy from the results of direct numerical computations. To compute the bound state properties of these atoms the author applied his exponential variational expansion in relative/perimetric three-body coordinates. For the ground 1 {sup 1}S(L=0) state and the lowest triplet 2 {sup 3}S(L=0) state of the {sup 3}He, {sup 4}He, and {sup {infinity}}He atoms the author also determined the lowest order QED corrections and the field component of isotopic shift (=field shift). For the 2 {sup 3}S(L=0) state of the {sup 3}He atom the hyperfine structure splitting is evaluated. The considered properties of the ground 1 {sup 1}S state and the lowest 2 {sup 3}S state in the {sup 3}He and {sup 4}He atoms are of great interest in a number of applications.
- OSTI ID:
- 20991223
- Journal Information:
- Journal of Chemical Physics, Vol. 126, Issue 10; Other Information: DOI: 10.1063/1.2709880; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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