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Part of the book series: Lecture Notes in Chemistry ((LNC,volume 42))

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Abstract

Many-body experts like to start from the one-particle approximation. Even when geminals or group functions are used they are ultimately expanded in the one-particle basis (Wilson 1984). Computational difficulties with the explicitly correlated wavefunctions prevented the use of these methods for all but a few-electron systems (Handy 1978), although there are still some, who have not buried all their hopes, and whose results are promising (cf Jankowski and Malinowski 1980; Jeziorski et al 1984). Notwithstanding their hopes the majority votes for one-particle approximation, because it is fundamental to our intuitions and capable of high accuracy (cf Handy 1978).

In which I am trying to explain why have I done it, what have I done, and what it is for.

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© 1986 Springer-Verlag Berlin Heidelberg

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Duch, W. (1986). Introduction. In: GRMS or Graphical Representation of Model Spaces. Lecture Notes in Chemistry, vol 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-93347-9_2

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  • DOI: https://doi.org/10.1007/978-3-642-93347-9_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-17169-0

  • Online ISBN: 978-3-642-93347-9

  • eBook Packages: Springer Book Archive

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