10 citations · 19 across the 7 of their papers we have counts for
9 papers
The Birman-Schwinger operator for the Cornell Hamiltonian
O Civitarese, S. Fassari, M. Gadella +1
Quantum Chromodynamics is the theory of strong interactions. It has been shown during the last decades that it describes correctly most of the properties of hadrons at high energy.…
The one-dimensional Coulomb Hamiltonian: Properties of its Birman-Schwinger operator
S. Fassari, M. Gadella, J. T. Lunardi +2
We study the Birman-Schwinger operator for a self-adjoint realisation of the one-dimensional Hamiltonian with the Coulomb potential. We study both the case in which this Hamiltonia…
Analysis of a one-dimensional Hamiltonian with a singular double well consisting of two nonlocal interactions
Silvestro Fassari, Manuel Gadella, Luis-Miguel Nieto +1
The objective of the present paper is the study of a one-dimensional Hamiltonian with the interaction term given by the sum of two nonlocal attractive -interactions of equal st…
The Schrödinger particle on the half-line with an attractive -interaction: bound states and resonances
S. Fassari, M. Gadella, L. M. Nieto +1
In this paper we provide a detailed description of the eigenvalue (respectively ) of the self-adjoint Hamiltonian operator representing the n…
The Birman-Schwinger Operator for a Parabolic Quantum Well in a Zero-Thickness Layer in the Presence of a Two-Dimensional Attractive Gaussian Impurity
Sergio Albeverio, Silvestro Fassari, Manuel Gadella +2
In this note we consider a quantum mechanical particle moving inside an infinitesimally thin layer constrained by a parabolic well in the -direction and, moreover, in the presen…
The two lowest eigenvalues of the harmonic oscillator in the presence of a Gaussian perturbation
Silvestro Fassari, Luis M. Nieto, Fabio Rinaldi
In this note we consider a one-dimensional quantum mechanical particle constrained by a parabolic well perturbed by a Gaussian potential. As the related Birman-Schwinger operator i…