On the approximate calculation of eigenfunctions

B. F. Gray*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A method is given for determining the variable parameters in a trial wave function which is independent of the minimum energy criterion. The energy is given as the root of a secular equation, but the value obtained may be above or below the true value. It is shown that the results of the method approach those of the standard one as the trial function becomes a better approximation to the true one, by applying it to the series of two-electron ions.

Original languageEnglish
Pages (from-to)1246-1247
Number of pages2
JournalThe Journal of Chemical Physics
Issue number6
Publication statusPublished - 1958
Externally publishedYes


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