Ab initiodetermination of quantum defects by calculation of the poles of the Schwingermatrix
- 1 July 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 28 (1) , 40-44
- https://doi.org/10.1103/physreva.28.40
Abstract
A general technique is developed to calculate the poles of the Schwinger matrix. All quantities are calculated numerically including the negative-energy Green's function. A short-range potential is defined and used to calculate quantum defects for states of very high and . Full exchange is included and no coupled equations are solved. This method is applied to the Rydberg states of lithium in the static-exchange approximation.
Keywords
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