RT info:eu-repo/semantics/article T1 A note on the exact Green function for a quantum system decorated by two or more impurities A1 Glasser, M. Lawrence K1 Green function K1 Función de Green K1 Delta potential K1 Potencial delta K1 Schroedinger equation K1 Ecuación de Schrödinger AB The exact Green function is constructed for a quantum system, with known Greenfunction, which is decorated by two delta function impurities. It is shown that whentwo such impurities coincide they behave as a single singular potential with combinedamplitude. The results are extended to N impurities and higher dimensions. PB Frontiers Media SN 2296-424X YR 2019 FD 2019 LK http://uvadoc.uva.es/handle/10324/40849 UL http://uvadoc.uva.es/handle/10324/40849 LA eng NO Frontiers in Physics, 2019, vol. 7. 3 p. NO Producción Científica DS UVaDOC RD 01-may-2024