Dalgarno-Lewis Method Revisited
Mathematical Physics
2010-12-22 v1 math.MP
Nuclear Theory
Quantum Physics
Abstract
Proving the existence of an operator that connects non-perturbed states to perturbed states, an alternative derivation of the Dalgarno-Lewis method is given. To illustrate that the Dalgarno-Lewis method is an apt tool for algebraic Hamiltonians, the method is applied to one class of such systems, namely deep three-dimensional potentials with positive parity.
Cite
@article{arxiv.1012.4783,
title = {Dalgarno-Lewis Method Revisited},
author = {A. B. Balantekin and A. Malkus},
journal= {arXiv preprint arXiv:1012.4783},
year = {2010}
}
Comments
6 pages of LATEX