I have studied a technique based on the subtraction of photons from optical states to improve the quantum properties such as entanglement and nonclassicality. We showed that the proposed protocol is effective even in the presence of non-unit quantum efficiency (Phys. Rev. A in 2003).
Together with my co-workers I have developed and demonstrated a new method using on/off detectors to reconstruct the statistics of optical signals. We have proposed a protocol for the reconstruction of the covariance matrix of two-mode optical Gaussian states which has been experimentally realized in collaboration with the University of Naples Federico II (Phys. Rev. Lett. in 2009).
Some of my results, obtained within the very active collaboration with the experimental Quantum Optics Group at the University of Insubria (Como), concern the use of photon number resolving detectors (PNRs) to manipulate, engineer and characterize optical quantum states (Phys. Rev. A and Opt. Express in 2012) also exploiting innovative detection techniques (Opt. Express in 2017, New. J. Phys. in 2019 and Phys. Lett. A in 2020). This method have been also studied to characterise the photon statistics of the radiation emitted by a free electron laser, FEL (Opt. Express 2021).
I am currently collaborating to the design, implementation and characterization of a source of squeezed light at the Quantum Optics Lab of the Deprtment of Physics at UniMI (J. Opt. Soc. Am. B in 2018) and its possible applications in quantum technologies (Phys. Rev. Lett. in 2020, Phys. Rev. A in 2021, J. Opt. Soc. Am. in 2022).