7 citations · 9 across the 5 of their papers we have counts for
Showing 2026Show all
3 papers · 1 filter
math-ph2026
Vacuum and thermal fluctuations of a scalar field with point interactions
Davide Fermi, Marco Gurgoglione
We investigate the vacuum and thermal fluctuations of a neutral massless scalar field living in Minkowski spacetime and interacting with a finite number of point-like obstacles, mo…
math-ph2026
Homogenization of point interactions
Domenico Cafiero, Michele Correggi, Davide Fermi
We consider a non-relativistic quantum particle in , or , interacting with singular zero-range potentials concentrated on a large collection of points. W…
math.SP2026
On two-dimensional Dirac operators with critical delta-shell interactions
William Borrelli, Pietro Carimati, Davide Fermi
We study two-dimensional Dirac operators with singular interactions of electrostatic and Lorentzscalar type, supported either on a straight line or a circle. For certain critical v…