38 citations · 101 across the 7 of their papers we have counts for
7 papers
Bound States in the Continuum in Two-Dimensional Serial Structures
G. Cattapan, P. Lotti
We investigate the occurrence of bound states in the continuum (BIC's) in serial structures of quantum dots coupled to an external waveguide, when some characteristic length of the…
Fano Resonances in Stubbed Quantum Waveguides with Impurities
G. Cattapan, P. Lotti
We consider T--shaped, two--dimensional quantum waveguides containing attractive or repulsive impurities with a smooth, realistic shape, and study how the resonance behavior of the…
S-Matrix Poles Close to Thresholds in Confined Geometries
G. Cattapan, P. Lotti
We have studied the behavior of the S-matrix poles near threshold for quantum waveguides coupled to a cavity with a defect. We emphasize the occurrence of both dominant and shadow…
From bound states to resonances: analytic continuation of the wave function
G. Cattapan, E. Maglione
Single-particle resonance parameters and wave functions in spherical and deformed nuclei are determined through analytic continuation in the potential strength. In this method, the…
Spin observables for the pd <-> pi+ t process around the Delta resonance
L. Canton, G. Cattapan, G. Pisent +2
The proton analyzing power Ay0 and the deuteron tensor analyzing power T20 are evaluated for the pd <-> pi+ t process, in the energy region around and above the Delta resonance. Th…
The piNNN--NNN problem. Connectedness, transition amplitudes and quasi-particle approximation
Giorgio Cattapan, Luciano Canton
In this paper we review the present status of the piNNN--NNN problem. In particular, we re-consider the chain-labelled approach recently proposed by us, and identify a class of gra…