5 papers
Vacuum-induced interference in light scattering by multilevel atomic chains
Aleksei Konovalov, Giovanna Morigi, Nicola Piovella
We investigate cooperative light scattering by an ordered chain of multilevel atoms, which possess two quasi-resonant transitions with parallel dipole moments. Interference between…
Subradiant Decay in 2D and 3D Atomic Arrays
Nicola Piovella, Romain Bachelard
Subradiance is a phenomenon where coupled emitters radiate light at a slower rate than independent ones. While its observation was first reported in disordered cold atom clouds, or…
Subradiance generation in a chain of two-level atoms with a single excitation
Nicola Piovella
Studies of subradiance in a chain N two-level atoms in the single excitation regime focused mainly on the complex spectrum of the effective Hamiltonian, identifying subradiant eige…
Cooperative Decay of N Atoms in a Ring Configuration
Nicola Piovella
We provide an analytic expression of the spectrum of the cooperative decay rate of N two-level atoms regularly distributed on a ring in the single-excitation configuration. The res…
Cooperative decay of an ensemble of atoms in a one-dimensional chain with a single excitation
Nicola Piovella
We propose a new expression of the cooperative decay rate of a one-dimensional chain of N two-level atoms in the single-excitation configuration. From it, the interference nature o…