We propose a review of recent developments on entanglement and nonclassical effects in
collective two-atom systems and present a uniform physical picture of the many predicted …

This paper introduces a new formalism for analyzing two-photon devices (eg, parametric
amplifiers and phase-conjugate mirrors), in which photons in the output modes are created …

The concept of Nth-order squeezing and intrinsic Nth-order squeezing is introduced and
applied to several physical situations that are known to exhibit second-order squeezing. It is …

This book discusses quantum optics and investigates the quantum properties of interactions
between atoms and laser fields. It is divided into three parts. Part I introduces the elementary …

We study the entanglement between two two-level atoms simultaneously interacting with a
single-mode thermal field through a two-photon process. When the two atoms are initially in …

The spectral squeezing in resonance fluorescence from a two-level atom is calculated. It is
shown that for resonance excitation optimum squeezing is obtained for near resonant …

Quantum fluctuations of atomic dipole variables in the two-photon Jaynes-Cummings model
are discussed. It is shown that dipole squeezing can be exhibited in certain periods of time …

Resonance fluorescence of two two-level atoms driven by a coherent laser field propagating
parallel to the interatomic axis is examined, taking into account the dipole-dipole interaction …

We study a system of two interacting, nonidentical quantum emitters driven by a coherent
field. We focus on the particular condition of two-photon resonance and obtain analytical …

The interaction between quantum emitters leads to the formation of superradiant and
subradiant states with possible applications in quantum technologies. To improve the …