6 citations · 9 across the 4 of their papers we have counts for
3 papers · 1 filter
Spectral properties of the singular Friedrichs-Lee Hamiltonian
Paolo Facchi, Marilena Ligabò, Davide Lonigro
We show that the Friedrichs-Lee model, which describes the one-excitation sector of a two-level atom interacting with a structured boson field, can be generalized to singular atom-…
Third-order phase transition: random matrices and screened Coulomb gas with hard walls
Fabio Deelan Cunden, Paolo Facchi, Marilena Ligabò +1
Consider the free energy of a -dimensional gas in canonical equilibrium under pairwise repulsive interaction and global confinement, in presence of a volume constraint. When the…
On the derivation of the GKLS equation for weakly coupled systems
Paolo Facchi, Marilena Ligabò, Kazuya Yuasa
We consider the reduced dynamics of a small quantum system in interaction with a reservoir when the initial state is factorized. We present a rigorous derivation of a GKLS master e…