Physical and nonclassical properties of the interaction between a four-level atom and field in coherent state of Morse potential

Alqannas, Haifa S.; Abdel‐Khalek, S.

doi:10.1007/s11082-019-1753-8

Cited by 17 publications

(7 citation statements)

References 28 publications

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“…Next, we will analyze the degree of entanglement by employing fidelity since it is the primary criterion for measuring the entanglement of the system components [26][27][28][29]. Recently it has been found that the fidelity can measure the entanglement between parts of a system.…”

Section: State Fidelity and Qubit-qubit Entanglementmentioning

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

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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: State Fidelity and Qubit-qubit Entanglementmentioning

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

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“…The Morse model potential [1], despite a very rough approximation, is widely used in molecular spectroscopy and in other areas of optics and chemical physics. According to the Chemical Abstracts Service, over 6,000 references are given on the request " Morse Formula" Ȧs an example, we present random selections of recent studies in the field of spectroscopy [2][3][4][5][6][7][8][9][10][11][12][13], the influence of an external field, laser dissociation of moleculescool [14][15][16][17][18][19][20][21][22][23][24], thermodynamics, kinetics [25][26][27][28][29][30][31][32][33][34], solid and liquid physicssti [35][36][37][38][39][40][41][42][43][44], intermolecular interactions [45][46][47]…”

Section: Introductionmentioning

confidence: 99%

Empirical quality criteria for the approximation of the electronic term of a diatomic molecule by the Morse formula

Denisov

2022

Optics and Spectroscopy

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A brief review of the latest results of the application of the approximation of the potential of a diatomic molecule by the Morse model function in applied spectroscopy is presented. The functions of the electronic terms of the diatomic molecules BeH, F2, H2, HCl, and Be2 are compared with their two alternative approximations by the Morse function. As a criterion, we used the differences between the original (approximated) term and its Morse models, which, combined with the dependence of the anharmonicity of the original terms on the vibrational quantum number ωexe(v), allowed to formulate some generalizations about the deformation of the form the original term in the approximations. Simulation always leads to an increase in the bond energy in the range of 7-50% and to an increase in the number of vibrational levels. In favorable cases, the contour shape is reproduced with a deviation of no more than 100-200 cm-1 in the lower part of the potential well. Key words: Morse formula, diatomic molecule, anharmonicity, electronic terms, vibrational structure.

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“…For the study of vibrations in the quantum mechanics and their relations to the spectroscopic results, there are multiple types of the potentials, such as the harmonic oscillator potential an Morse oscillator potential which we focus on in this research. There are multiple used formulas of Morse oscillator, based on the zeros of the energy, such as the formula represented in the following equation ( Abebe et al, 2021 ; Alqannas and Abdel-Khalek, 2019 ; Ikot et al, 2021 ; Morse, 1929 ; Okoia et al, 2020 ; Rong, 2003 ):

12

From equation (1) , we note that the formula of Morse oscillator has three different parameters:

which is the minimum energy of the well, q which represents the width parameter of Morse oscillator, and

which represents the equilibrium bond of the oscillator ( Pingak et al, 2021 ; Al-Raeei, 2021 ). In the following, we are going to show a method for deriving an equation of state of Morse oscillator (EOSMO) based on the integral equations theory using the mean spherical approximation.…”

Section: Introductionmentioning

confidence: 99%

Morse oscillator equation of state: An integral equation theory based with virial expansion and compressibility terms

Al‐Raeei

2022

Heliyon

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Physical and nonclassical properties of the interaction between a four-level atom and field in coherent state of Morse potential

Cited by 17 publications

References 28 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

Empirical quality criteria for the approximation of the electronic term of a diatomic molecule by the Morse formula

Morse oscillator equation of state: An integral equation theory based with virial expansion and compressibility terms

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