Use of Smatrix approach to develop a theory of perturbations in 1/Z
Abstract
On the basis of the Smatrix approach, a theory of perturbations in 1/Z is developed; the energy of a multielectron system is written in the form of a double series in powers of α and αZ and a method of determining the coefficients of this series in a jj coupling scheme is given. The method is applied to configurations of the type1s^2 2s^{n_1 } 2p_{{1 2}}^{n_2 } 2_{{3 2}}^{n_3 } , and numerical results are given for the wavelength of transitions between several states of the isoelectronic as sequence of carbon, illustrating the good agreement between experiment and theory.
 Publication:

Soviet Physics Journal
 Pub Date:
 August 1978
 DOI:
 10.1007/BF00892358
 Bibcode:
 1978SvPhJ..21.1027G