A note on the Exact Green function for a quantum system decorated by two or more impurities
Quantum Physics
2017-02-20 v1
Abstract
The exact Green function is constructed for a quantum system, with known Green function, which is decorated by two delta function impurities.It is shown that when two such impurities coincide they behave as a single singular potential with combined amplitude. The results are extended to N impurities.
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Cite
@article{arxiv.1702.05111,
title = {A note on the Exact Green function for a quantum system decorated by two or more impurities},
author = {M. L. Glasser},
journal= {arXiv preprint arXiv:1702.05111},
year = {2017}
}
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4 pages