Quantum entanglement and atomic coherence are examined for a system consisting of a
four-level atom (FLA) interacted with a nonlinear quantum field. We assume that the FLA …

This paper hints at the Goos–Hänchen shift properties of a cavity containing an ensemble of
atoms using a four-level atomic system involving a Rydberg state. By means of the stationary …

We present a theoretical study for the Kerr nonlinearity of a four-level double-V-type
quantum system near a two-dimensional array of metal-coated dielectric nanospheres. In …

We investigate the phenomenon of quantum interference in spontaneous emission for a
three-level V-type quantum emitter placed between two bismuth-chalcogenide (Bi 2 Te 3, Bi …

In this paper, the dynamics of a system consisting of a three-level atom, which interacts with
a single-mode quantized field in a lossy cavity, is studied in the presence of the dependence …

The magnitude and sign of self-Kerr nonlinear coefficient in a degenerate two-level
inhomogeneously broadened medium are simply controlled by an external magnetic field …

We study the two-color nonreciprocal effects of transmission and reflection in cold atoms
driven into the tripod configuration and confined in a moving optical lattice. Our numerical …

We propose a degenerate V-type inhomogeneously broadening atomic model for Kerr
nonlinear control under the support of an external magnetic field. The magnetic field is used …

In this paper, we study optical bistability (OB) and optical multistability (OM) in a defect
medium with a monolayer of graphene quantum system. The graphene quantum system …

We investigate the enhancement of the Kerr nonlinearity in a four-level tripod-type atomic
system completely without absorption. We study the effect of the incoherent pumping on the …