In this report we discuss the problem of approximating nonlinear delta-interactions in dimensions one and three with regular, local or non-local nonlinearities. Concerning the one dimensional case, we discuss a recent result proved in , on the derivation of nonlinear delta-interactions as limit of scaled, local nonlinearities. For the three dimensional case, we consider an equation with scaled, non-local nonlinearity. We conjecture that such an equation approximates the nonlinear delta-interaction, and give an heuristic argument to support our conjecture.
|Data di pubblicazione:||2015|
|Titolo:||On the derivation of the Schrödinger equation with point-like nonlinearity|
|Digital Object Identifier (DOI):||10.17586/2220-8054-2015-6-1-79-94|
|Codice identificativo ISI:||WOS:000219890800005|
|Appare nelle tipologie:||Articolo su Rivista|