Research in quantum information processing has followed two different directions: the use of
discrete variables (qubits) and that of high-dimensional, continuous-variable Gaussian …

Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to
real-world applications for communication and computation unavailable without the …

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 …

This review covers the latest developments in continuous-variable quantum-state
tomography of optical fields and photons, placing a special emphasis on its practical aspects …

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 …

The recent launch of the Micius quantum-enabled satellite heralds a major step forward for
long-range quantum communication. Using single-photon discrete-variable quantum states …

We characterize the class of all physical operations that transform Gaussian states to
Gaussian states. We show that this class coincides with that of all operations that can be …