Perturbation theory for confined systems
Quantum Physics
2010-04-16 v1
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.
Cite
@article{arxiv.1004.2508,
title = {Perturbation theory for confined systems},
author = {Francisco M. Fernández},
journal= {arXiv preprint arXiv:1004.2508},
year = {2010}
}