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arXiv · 1004.2508

Perturbation theory for confined systems

Francisco M. Fernández
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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.

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Francisco M. Fernández. 2010-04-14. Perturbation theory for confined systems. https://arxiv.org/abs/1004.2508

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