Quantum scheme for N-level atom interacting with a two two-level atom: Atomic Fisher information and entropy squeezing

Hilal, E. M.; Alkhateeb, Sadah A.; Abdel‐Khalek, S.; Khalil, E. M.; Almowalled, Amjaad

doi:10.1016/j.aej.2020.02.018

Cited by 8 publications

(5 citation statements)

References 32 publications

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“…Section 3 discusses the dynamical behavior of the entropy and variance squeezing based on the singleatom density matrix (14).…”

Section: Analytical Solutionmentioning

confidence: 99%

“…It was found that there is a strong correlation between the spin-orbit interaction and the strength of the AES, which depends on the initial state and the number of squeezed components [13]. Additionally, the relation between the atomic Fisher information and AES of the quantum system for an N-level atom that interacted with a two-level atom was also determined [14]. Experimental results in quantum physics cannot be explained using a closed system (hermitian Hamiltonian).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Entanglement and Entropy Squeezing for Moving Two Two-Level Atoms Interaction with a Radiation Field

Abdel‐Khalek¹,

Khalil²,

Alsubei³

et al. 2021

Computers, Materials &Amp; Continua

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In this paper, we analyzed squeezing in the information entropy, quantum state fidelity, and qubit-qubit entanglement in a time-dependent system. The proposed model consists of two qubits that interact with a two-mode electromagnetic field under the dissipation effect. An analytical solution is calculated by considering the constants for the equations of motion. The effect of the general form of the time-dependent for qubit-field coupling and the dissipation term on the temporal behavior of the qubit-qubit entanglement, quantum state fidelity, entropy, and variance squeezing are examined. It is shown that the intervals of entanglement caused more squeezing for the case of considering the time-dependent parameters. Additionally, the entanglement between the qubits became more substantial for the case of time dependence. Fidelity and negativity rapidly reached the minimum values by increasing the effect of the dissipation parameter. Moreover, the amount of variance squeezing and the amplitude of the oscillations decreased considerably when the time dependence increased, but the fluctuations increased substantially. We show the relation between entropy and variance squeezing in the presence and absence of the dissipation parameter during the interaction period. This result enables new parameters to control the degree of entanglement and squeezing, especially in quantum communication.

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“…Section 3 discusses the dynamical behavior of the entropy and variance squeezing based on the singleatom density matrix (14).…”

Section: Analytical Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Entanglement and Entropy Squeezing for Moving Two Two-Level Atoms Interaction with a Radiation Field

Abdel‐Khalek¹,

Khalil²,

Alsubei³

et al. 2021

Computers, Materials &Amp; Continua

Self Cite

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show abstract

“…Moreover, these types of interactions may be described by some mathematical tools to switch from one structure to another. The interaction between a set of two-level atoms and a quantized field has been transformed into three modes of electromagnetic fields (Abdalla et al 2006), atom-atom or field-atom-interactions (Abdalla et al 2016;Hilal et al 2020). In this context, we aim to investigate the interaction between a two-level atom and the category of the SU(1, 1) Lie algebra, where the atom may be considered as a particle regularized in the SU(2) Lie algebra.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the information of nonlinear SU(1, 1) quantum systems interacting with a two-level atom

2022

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The effect of nonlinearity, initial atomic state, and different resonance cases on the interaction between nonlinear SU (1, 1) quantum states and a two-level atom is discussed. The optimal behaviours of decoherence, entanglement and quantum coherence are predicted via using the skew information, tomographic entropy, and the relative entropy of coherence, respectively. It is shown that the detuning parameter has a destructive effect on the coherence and consequently on the entanglement if the quantum system is regulated in the ideal SU (1, 1) quantum systems. For the nonlinear SU (1, 1) quantum systems, the ability to suppress the decay of entanglement induced by the detuning may be increased by preparing the initial atomic state in its excited state.

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“…e e ect of ECF and nonlinear medium on the two-level atom interacting with an electromagnetic eld has been discussed [23]. Also, the e ect of ECF on the geometric phase and squeezing phenomenon of two twolevel atoms interacting with N-level atom has been illustrated [24]. Finally, the e ects of ECF and the detuning parameter on the RCP, squeezing phenomenon, atomic Q-function, and atomic Wehrl density for the interaction between SU(1,1) quantum system and a three-level atom have been investigated [25].…”

Section: Introductionmentioning

confidence: 99%

Atomic Marginal Distribution and Squeezing Phenomena of Correlated Two Modes Interacting with a Three-Level Atom in the Presence of an External Classical Field

Obada

Khalil

Sanad

et al. 2022

International Journal of Optics

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The influence of the external classical field on a correlated two-mode of the electromagnetic field interacting with a three-level atom in the Λ structure is studied. A rotation of the atomic basis is used to remove the classical field terms. The time-dependent wave function is obtained by solving the Schrödinger equation. The influence of the classical field on the phenomenon of revival, collapse, squeezing, and marginal atomic distribution are discussed. In our analysis, the cavity field is prepared in the entangled pair coherent states and the atomic system in the upper state. The results showed that the occupation of the atomic level is significantly affected by the addition of the classical field. The presence of the classical field reduces the squeezing intervals and the extreme values of the atomic marginal distribution.

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Quantum scheme for N-level atom interacting with a two two-level atom: Atomic Fisher information and entropy squeezing

Cited by 8 publications

References 32 publications

Entanglement and Entropy Squeezing for Moving Two Two-Level Atoms Interaction with a Radiation Field

Entanglement and Entropy Squeezing for Moving Two Two-Level Atoms Interaction with a Radiation Field

Enhancing the information of nonlinear SU(1, 1) quantum systems interacting with a two-level atom

Atomic Marginal Distribution and Squeezing Phenomena of Correlated Two Modes Interacting with a Three-Level Atom in the Presence of an External Classical Field

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