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 …

Quantum systems with finite Hilbert space are considered, and phase-space methods like
the Heisenberg–Weyl group, symplectic transformations and Wigner and Weyl functions are …

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 briefly review the ideas that have shaped modern optics and have led to various
applications of light ranging from spectroscopy to astrophysics, and street lights to quantum …

Inspired by the recent experiment of Hamsen et al.[Phys. Rev. Lett. 118, 133604 (2017)
10.1103/PhysRevLett. 118.133604], which demonstrated two-photon blockade in a driven …

An arbitrary initial state of an optical or microwave field in a lossy driven nonlinear cavity can
be changed into a partially incoherent superposition of only the vacuum and the single …

This work discusses quantum states defined in a finite-dimensional Hilbert space. In
particular, after the presentation of some of them and their basic properties, the work …

Conventional Glauber coherent states (CS) can be defined in several equivalent ways, eg,
by displacing the vacuum or, explicitly, by their infinite Poissonian expansion in Fock states …

Edited by one of the scientists who developed what is still considered the key solution to the
quantum phase operator problem, this volume brings together important historic and modern …

We discuss a system comprising a cavity with a nonlinear medium of k-order and an external
coherent field excitation. We assume that the cavity field was initially in vacuum state. We …