The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …

In this tutorial, we introduce the basic concepts and mathematical tools needed for phase-
space description of a very common class of states, whose phase properties are described …

Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

In this survey, various generalizations of Glauber–Sudarshan coherent 4 states are
described in a unified way, with their statistical properties and their 5 possible role in non …

We extend the quantum discord to continuous variable systems and evaluate Gaussian
quantum discord C (ϱ) for bipartite Gaussian states. In particular, for squeezed-thermal …

Quantum metrology utilizes nonclassical resources, such as entanglement or squeezed
light, to realize sensors whose performance exceeds that afforded by classical-state …

Quantum Mechanics represents one of the most successful theories in the history of science.
Born more than a hundred years ago, for several decades Quantum Mechanics was …

Measurement of the state of a quantum system with inherent quantum uncertainty (noise)
approaching the ultimate physical limits is of both technological and fundamental interest …

This article reviews recent hybrid approaches to optical quantum information processing, in
which both discrete and continuous degrees of freedom are exploited. There are well …

Communication is an integral part of human life. Today, optical pulses are the preferred
information carriers for long-distance communication. The exponential growth in data leads …