1. On the behaviour of the two-dimensional Hamiltonian −Δ+λ[δ(x⃗+x⃗0)+δ(x⃗−x⃗0)] as the distance between the two centres vanishes. (12th May 2020) Authors: Fassari, S; Popov, I; Rinaldi, F Journal: Physica scripta Issue: Volume 95:Number 7(2020) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗