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Symmetry-Adapted Perturbation Theory: A General Approach

  • Paolo Arrighini
Part of the Lecture Notes in Chemistry book series (LNC, volume 25)

Abstract

Perturbation theory plays a fundamental role in the determination of quantum mechanical states. Here we shall be concerned with stationary states, so our attention will be restricted only to the time-independent variant of such theory. Besides conventional treatments, described in any textbook on quantum mechanics, a renewed interest in general perturbation theory is to be recognized in more recent years [18,19], In a remarkable series of papers, entitled “Studies in Perturbation Theory” [10,20–32], Löwdin has emphasized the partitioning technique as a tool for solving secular equations associated with eigenvalue problems, putting in evidence its connection with various perturbation expansions.

Keywords

Perturbation Theory Secular Equation Perturbation Scheme Reference Space Bation Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1981

Authors and Affiliations

  • Paolo Arrighini
    • 1
  1. 1.Instituto di Chimica FisicaUniversità di PisaPisaItaly

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