Annihilating and creating a photon in a travelling light field are useful building blocks for
quantum-state engineering to generate a photonic state at will. In this tutorial, we review the …

This review covers recent theoretical and experimental efforts to extend the application of
the continuous-variable quantum technology of light beyond" Gaussian" quantum states …

Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …

The study of Gaussian states has arisen to a privileged position in continuous variable
quantum information in recent years. This is due to vehemently pursued experimental …

We develop a resource theory for continuous-variable systems grounded on operations
routinely available within current quantum technologies. In particular, the set of free …

We present a detailed experimental analysis of a free-propagating light pulse prepared in a
“Schrödinger kitten” state, which is defined as a quantum superposition of “classical” …

These notes originated out of a set of lectures in Quantum Optics and Quantum Information
given by one of us (MGAP) at the University of Napoli and the University of Milano. A quite …

We experimentally demonstrate that the entanglement between Gaussian entangled states
can be increased by non-Gaussian operations. Coherent subtraction of single photons from …

The non-Gaussian operation can be used not only to enhance and distill the entanglement
between Gaussian entangled states, but also to improve the performance of quantum …

We address the effective generation of thermal non-classical correlations in two two-level
atoms when exposed to a Fock-state cavity incorporated with classical decoherence effects …