A Note on the Exact Green Function for a Quantum System Decorated by Two or More Impurities

Autor:	M. L. Glasser
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	quantum green function delta function potential contact interaction Schroedinger equation quantum graph 02.30Gp Physics QC1-999
Zdroj:	Frontiers in Physics, Vol 7 (2019)
Druh dokumentu:	article
ISSN:	2296-424X
DOI:	10.3389/fphy.2019.00007
Popis:	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 and higher dimensions.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/3cf76d8dbd0f446b9df248dc353b7084 Zobrazit plný text záznamu View record in DOAJ