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 …

We present a general problem of quantum entanglement quantified by von Neumann
entropy for N-level atomic system. Time evolution of state vector of the entire system is …

The quantum system of the field initially defined by the k-photon-added Morse potential
coherent states (MPCSs) of the radiation field interacting with a four-level atom (FLA) was …

This article investigates the effect of the detuning interaction parameters of a single-mode
electromagnetic field with a five-level Λ-type. The differential system is solved in the …

In this paper, we consider a two-level atom (TLA) interacting with a field mode, which is
initially in the photon-added coherent state for the Morse potential (PACSMP). We …

In this paper, we investigate some properties through four-level λ-type atom interacting with
a single-mode quantized field with multi-photon transitions. We study this system in the …

We consider a four-level atom (FLA) interacting with a field mode that is initially in a coherent
state associated with a generalized Heisenberg algebra (CSGHA). The dynamical behavior …

We introduce a quantum scheme where a single five-level atom interacts with a single-mode
cavity field by a time-dependent coupling. During the interaction, the temporal behavior of …

In this paper, the effects of the field dam** and Kerr-like medium on a system of a four-
level atom in the♢-type interacting nonlinearly with a two-mode field are studied. Analytical …

The influence of time dependence on the model which consists of two qubits interacting with
a two-mode electromagnetic field of the parametric amplifier type is investigated. The …