Journal of Mathematical Chemistry

, Volume 52, Issue 1, pp 174–177 | Cite as

Perturbation theory for confined systems

Original Paper
First Online:
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Abstract

We discuss the application of perturbation theory to a system of particles confined in a spherical box. A simple argument shows that the particles behave almost independently in sufficiently strong confinement. We choose the helium atom with a moving nucleus as a particular example and compare results of first order with those for the nucleus clamped at the center of the box. We provide a suitable explanation for some numerical results obtained recently by other authors.

Keywords

Confined systems Perturbation theory Helium atom 
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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.División Química TeóricaINIFTA (UNLP, CCT La Plata-CONICET)La PlataArgentina

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