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Journal ArticleDOI

Tables for Determining Atomic Wave Functions and Energies

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TLDR
In this paper, a table has been constructed so that wave functions and energies, for any atomic state having $1s, $2s$ and $2p$ electrons, can be computed by variational means.
Abstract
Tables have been constructed so that wave functions and energies, for any atomic state having $1s$, $2s$ and $2p$ electrons, can be computed by variational means Exchange terms are included, so that singlet and triplet states can be minimized separately By using the tables a state can be calculated in a few hours A few of the possible states have been worked out The best parameters, the total energies and the term values are given for the states $(1{s}^{2})^{1}S,(1s,2s)^{1}S,^{3}S;(1,2p)^{1}P,^{3}P; (1{s}^{2},2s)^{2}S; (1{s}^{2},2p)^{2}P; (1{s}^{2},2{s}^{2})^{1}S; (1{s}^{2},2s,2p)^{1}P,^{3}P; (1{s}^{2},2{p}^{2})^{1}S,^{1}D,^{3}P; (1{s}^{2},2{s}^{2},2p)^{2}P; (1{s}^{2},2{s}^{2},2{p}^{6})^{1}S$; of the atoms He, Li, Be, B, C, N, O, F, Ne, Na and Mg The intramultiplet separations have been computed, including the spin-spin interaction when necessary: the check with experiment being fairly satisfactory By the use of an empirical correction rule, term values can be predicted to within a few hundred wave numbers

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Journal ArticleDOI

Electron ionisation of 23S helium

TL;DR: In this paper, Hartree-Fock wavefunctions are used to calculate the Born cross section for the process which leaves the He+ ion in a 1s or 2p state and also for autoionisation.
Journal ArticleDOI

The fine structure of the 2P terms of the lithium isoelectronic sequence

K L Bell, +1 more
TL;DR: In this article, the fine structure separation of the 1s2np 2P, n = 2, 3 and 4, states of the three-electron systems were made using wave functions of the open-shell type.
Journal ArticleDOI

Atomic Binding Energies

TL;DR: In this article, the results of some calculations of analytical atomic wave functions for the ground-state of atoms lithium to neon are presented in the accompanying table, where they may be compared with those deduced from experiment.
Book ChapterDOI

Bibliography of Atomic Wave Functions

TL;DR: In this article, a bibliography of atomic wave functions is presented, which includes the Hartree equations, the Fock equations, and the one-electron wave functions of free atoms or ions.
Journal ArticleDOI

Collisional Transfer of Triplet Excitations between Helium Atoms

TL;DR: In this article, the cross sections for 2 3 S and 2 3 P excitation transfer processes between He atoms are calculated by the perturbed stationary state method and the potential energy curves for He(1 1 S)+He * (2 3 P) and He( 1 1 S) +He *(2 3 S) systems are obtained by the Heitler-London method taking the configuration interaction between them into account.
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