-
Article
The effect of dam** on a quantum system containing a Kerr-like medium
An analytical description is given for a model which represents the interaction between \(Su(1,1)\) ...
-
Article
Open AccessQuantum Statistical Properties of the Codirectional Kerr Nonlinear Coupler in Terms of su \(\left (2\right ) \) Lie Group in Interaction with a Two-level Atom
The problem of the codirectional Kerr coupler has been considered several times from different point of view. In the present paper we introduce the interaction between a two-level atom and the codirectional Ke...
-
Article
Time-Dependent Interaction Between a Two-Level Atom and N Two-Level Atoms in Terms of su(2) Lie Algebra
We transform the nonlinear interaction between a two-level atom and two-mode fields in a frequencyconverter-type device into an inactivation governed by su(2) Lie algebra operators with phase and coupling dependi...
-
Article
Entanglement Between a Single Two-Level Atom and Quantum Systems of N-Level Atoms in the Presence of an External Classical Field
We study a single two-level atom interacting with quantum systems of N-level atoms in the presence of an external classical field. We obtain an analytic solution under a specified condition. Then we determine the...
-
Article
Nonclassical Properties for Two Coupled N-Two-Level Atom and a Single Two-Level Atom Under an External Magnetic Field
We study the interaction between a single two-level atom and N two-level atoms under the effect of a uniform magnetic field. The exact solution is obtained and the expectation value of the time-dependent quantum ...
-
Article
Entanglement of Two Coupled Atoms in the Presence of a Time-Dependent External Magnetic Field
We study the problem of a time-dependent nonuniform magnetic field in the Heisenberg chain. We consider two cases: a single two-level atom and N-level atoms affecting by the magnetic field. We obtain the wave fun...
-
Article
Open AccessQuantum statistical characteristics of the interaction between two two-level atoms and radiation field
A quantum optics model is considered where the cavity field interacts with two coupled atoms. The time-dependent wave function is obtained and used to derive the density matrix from which we discussed some sta...
-
Article
Entanglement of Degenerate and Nondegenerate Parametric Amplifiers Interacting with a Single Two-Level Atom
We consider the time-dependent interaction between a single two-level atom and a combination of degenerate and nondegenerate parametric amplifiers. Under certain canonical transforms, we manage to remove the n...
-
Article
The interaction between a single two-level atom and the combination of a frequency converter and the sub-harmonic generation
The problem of a time-dependent quantum system, which consists of coupled sub-harmonic generation with the parametric down conversion injected within a single cavity containing an atom, is considered. The prob...
-
Article
Entanglement and Sudden Death of a Nonlinear Two-Level-Atom Pair Interacting with a Radiation Field
We study the entanglement between a pair of two-level atoms simultaneously interacting via a singlemode thermal field. The Hamiltonian also describes a two-photon process. The entanglement between a nonlinear ...
-
Article
Open AccessPurity and Correlation of a Cavity Field Interacting with a SC Charge Qubit with a Lossy Cavity
A single-mode microwave cavity field, coupled to its reservoir, interacting generally with a superconducting charge qubit is considered. Using a certain canonical transformation for the qubit states, the syste...
-
Article
Quantum Treatment of the Interaction Between an N-Level Atom and Two Noninteracting Two-Level Atoms
We consider the problem of two two-level atoms interacting with N-level atom. We obtain the exact solution for the wave function for the case where both atoms are identical and the system is treated at exact reso...
-
Article
Dynamics of a three level atom interacting with a detuned SU (1,1) quantum system
Starting from the interaction between a 3-level atom in the cascade configuration with an SU(1, 1) quantum system, an effective Hamiltonian for a 2-level atom with the presence of a Stark shift structure is ob...
-
Article
Some statistical properties for a moving three-level atom in interaction with a bimodal cavity field
In this paper we consider the problem of the interaction between a three-level atom and a quantized bimodal cavity field. The coupling parameter between the atom and the field is taken to be time-dependent by ...
-
Article
Quantum treatment for two two-level atoms in interaction with an SU(1,1) quantum system
We consider the interaction between two identical two-level atoms prepared in superposition states and an SU(1, 1) quantum system prepared in the Perelemov coherent state. We determine the timedependent wave func...
-
Article
Two coupled oscillators in the form of a frequency converter in interaction with a single atom via two-photon processes
We consider the problem of a two-level atom with degenerate two-photon transitions interacting with a single-mode radiation field in the presence of a parametric frequency-converter term. A Hamiltonian represe...
-
Article
Entropic uncertainty for two atoms interacting with a cavity field under the influence of two photons (off-resonance case)
In this paper, we introduce a Hamiltonian model describing the interaction of two photons with two two-level atoms and a degenerate parametric amplifier. In the near-resonance case, we obtain an analytic solut...
-
Article
Autocorrelation function for a two-level atom “with counter-rotating terms”
We study the statistics of the emitted light from a single two-level atom in a cavity. We explore the effects of counter-rotating terms. We show that the virtual processes destroy the antibunching effect in th...
-
Article
Nonclassical Properties of Squeezed Finite-Dimensional Pair Coherent State
We study the effect of the squeeze operator on the finite pair-coherent state. The state is a type of a correlated two-mode state in finite dimension based on the resonant ion-cavity interaction. We have discu...
-
Article
Enhancement non Classical Properties of a Pair of Qubit via Deformed Operators
The present paper is devoted to consider the problem of the interaction between a pair of entangled qubits and a multiphotons cavity mode. The deformed operators are involved in the Hamiltonian model which rep...
