4 citations · 4 across the 2 of their papers we have counts for
5 papers
Non-Hermitian skin effect as an impurity problem
Federico Roccati
A striking feature of non-Hermitian tight-binding Hamiltonians is the high sensitivity of both spectrum and eigenstates to boundary conditions. Indeed, if the spectrum under period…
Modeling epidemics through ladder operators
F. Bagarello, F. Gargano, F. Roccati
We propose a simple model of spreading of some infection in an originally healthy population which is different from other models existing in the literature. In particular, we use…
Reply to Comment on "A no-go result for the quantum damped harmonic oscillator"
F. Bagarello, F. Gargano, F. Roccati
In a recent paper, \cite{deguchi}, Deguchi and Fujiwara claim that our results in \cite{BGR} are wrong, and compute what they claim is the square integrable vacuum of their annihil…
Tridiagonality, supersymmetry and non self-adjoint Hamiltonians
F. Bagarello, F. Gargano, F. Roccati
In this paper we consider some aspects of tridiagonal, non self-adjoint, Hamiltonians and of their supersymmetric counterparts. In particular, the problem of factorization is discu…
A no-go result for the quantum damped harmonic oscillator
Fabio Bagarello, Francesco Gargano, Federico Roccati
In this letter we show that it is not possible to set up a canonical quantization for the damped harmonic oscillator using the Bateman lagrangian. In particular, we prove that no s…