172 citations · 944 across the 40 of their papers we have counts for
40 papers
Coherent γ-ray Generation By Partially Stripped Ion Beams
Nicola Piovella, Gordon R. M Robb
We describe a scheme for generation of coherent -rays by backscattering intense visible laser light from a beam of partially stripped ions. The scheme is similar in principle to…
Detecting entanglement from macroscopic measurements of the electric field and its fluctuations
Pedro Rosario, Alan C. Santos, Nicola Piovella +3
To address the outstanding task of detecting entanglement in large quantum systems, entanglement witnesses have emerged, addressing the separable nature of a state. Yet optimizing…
Mean-Field Description of Cooperative Scattering by Atomic Clouds
Nicola Piovella
We present analytic expressions for the scattering of light by an extended atomic cloud. We obtain the solution for the mean-field excitation of different atomic spherical distribu…
Single Photon Superradiance and Subradiance as Collective Emission From Symmetric and Antisymmetric States
Nicola Piovella, Stefano Olivares
Recent works have shown that collective single photon spontaneous emission from an ensemble of resonant two-level atoms is a rich field of study. Superradiance describes emissi…
Superradiant transfer of quantized orbital angular momentum between light and atoms in a ring trap
Nicola Piovella, Gordon R. M. Robb, Romain Bachelard
The orbital angular momentum (OAM) from a laser beam can be coherently transferred to a Bose-Einstein condensate in a ring trap, in quantized units of . The light-matter cou…
Classical versus quantum intensity-field correlations of scattered light from extended cold atomic clouds
Nicola Piovella
We calculate the intensity-field correlations in the light scattered by N cold atoms driven by a quasi-resonant laser field. Fundamental differences occur if the atomic state is an…