Introduction

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

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).

Keywords

Niazi 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • W. Duch
    • 1
    • 2
  1. 1.Max-Planck-Institut für Physik und AstrophysikGarching bei MünchenDeutschland
  2. 2.Instytut FizykiUMKToruńPoland

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