The Jaynes–Cummings Model (JCM) has recently been receiving increased attention as
one of the simplest, yet intricately nonlinear, models of quantum physics. Emphasising the …

Interactions between light and matter play an instrumental role in spectroscopy, sensing,
quantum information processing and lasers. In most of these applications, light is considered …

The production of pairs of entangled photons simply by focusing a laser beam onto a crystal
with a nonlinear optical response was used to test quantum mechanics and to open new …

Nano-and micromechanical solid-state quantum devices have become a focus of attention.
Reliably generating nonclassical states of their motion is of interest both for addressing …

The counter-intuitive aspects of quantum physics have been for long illustrated by thought
experiments, from Einstein's photon box to Schrödinger's cat. These experiments have now …

We revisit a question asked by Dyson:“Is a graviton detectable?” We demonstrate that in
both Dyson's original sense and in a more modern measurement-theoretic sense, it is …

A state of a quantum-mechanical system is completely described by a density matrix or a
phase-space distribution such as the Wigner function. The complete family of squeezed …

Advancing the debate on quantum effects in light-initiated reactions in biology requires clear
identification of non-classical features that these processes can exhibit and utilize. Here we …

Nonclassical effects such as squeezing, antibunching, and sub-Poissonian statistics of
photons have been attracting attention in quantum optics over the last decade. Up to now …

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 …