The Wigner function was formulated in 1932 by Eugene Paul Wigner, at a time when
quantum mechanics was in its infancy. In doing so, he brought phase space representations …

We present a review of theoretical and experimental aspects of multiphoton quantum optics.
Multiphoton processes occur and are important for many aspects of matter–radiation …

The term'nonclassical states' refers to the quantum states that cannot be produced in the
usual sources of light, such as lasers or lamps, rather than those requiring more …

We propose a scheme for the generation of arbitrary coherent superpositions of vortex states
in Bose-Einstein condensates (BEC) using the orbital-angular-momentum states of light. We …

There are several examples of bipartite entangled states of continuous variables for which
the existing criteria for entanglement using the inequalities involving the second-order …

This book is designed to give a background on the origins and development of Wigner
functions, as well as its mathematical underpinnings. Along the way the authors emphasise …

The pair-coherent states for a two-mode radiation field are known to belong to a family of
states with non-Gaussian wavefunction. The nature of quantum entanglement between the …

A phase-space description of the Laguerre–Gaussian modes is presented that points out the
connection between these modes and the Hermite–Gaussian modes. We exploit the …

We investigate the statistical properties and inseparability of the field states generated by
any order nonlocal<? A3B2 show [pmg: line-break justify=" yes"/]?> coherent photon …

In continuous-variable quantum information, non-Gaussian entangled states that are
obtained from Gaussian entangled states via photon subtraction are known to contain more …