Entanglement between atomic thermal states and coherent or squeezed photons in a damping cavity

Yadollahi, Fatemeh; Safaiee, R.; Golshan, M.M.

doi:10.1016/j.physa.2017.09.047

Cited by 3 publications

(4 citation statements)

References 42 publications

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“…Moreover, it takes a much longer time for the entanglement to disappear in the coherent case, as compared to the binomial distribution. This observation is again due to the fact that more photonic states participate in the entanglement when the photonic state is a coherent one [30].…”

Section: Numerical Results and Discussionmentioning

confidence: 95%

“…Parenthetically, we mention that a thorough examination of the entanglement between atoms and a photonic coherent state, in a lossy cavity, is made in Ref. [30].…”

Section: Atom-photon Entanglementmentioning

confidence: 99%

“…To the best of our knowledge, there is no analytical solution for the diagonal elements and we have to employ numerical methods. It is worth mentioning that the foregoing procedure is quite general and can be applied to any such systems [30], the difference being in the specification of the initial states. Having determined the elements of the original density matrix, we can partially transpose it, relative to one of the subsystems, with ease.…”

Section: Atom-photon Entanglementmentioning

confidence: 99%

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Characteristics of the Temporal Behavior of Entanglement between Photonic Binomial Distributions and a Two-Level Atom in a Damping Cavity

Yadollahi

Safaiee

Golshan

2019

IJOP

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In the present study, temporal behavior of entanglement between photonic binomial distributions and a two-level atom in a leaky cavity, in equilibrium with the environment at a temperature T, is studied. In this regard, the master equation is solved in the secular approximation for the density matrix, when the initial photonic distribution is binomial, while the atomic states obey the Boltzmann distribution. The atom-photon density matrix so calculated is then used to compute the negativity, as a measure of entanglement. The behavior of atom-photon entanglement is, consequently, determined as a function of time and temperature. To justify the behavior of atom-photon entanglement, moreover, we employ the total density matrix to compute and analyze the time evolution of the initial photonic binomial probability distribution. Our results, along with representative figures reveal that the atomphoton degree of entanglement exhibits oscillations while decaying with time and asymptotically vanishes. It is further demonstrated that an increase in the temperature gives rise to a decrease in the entanglement. The finer characteristics of the temporal behavior of the corresponding probability distribution and, consequently, the atom-photon entanglement is also given and discussed.

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Section: Numerical Results and Discussionmentioning

confidence: 95%

“…Parenthetically, we mention that a thorough examination of the entanglement between atoms and a photonic coherent state, in a lossy cavity, is made in Ref. [30].…”

Section: Atom-photon Entanglementmentioning

confidence: 99%

Section: Atom-photon Entanglementmentioning

confidence: 99%

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Characteristics of the Temporal Behavior of Entanglement between Photonic Binomial Distributions and a Two-Level Atom in a Damping Cavity

Yadollahi

Safaiee

Golshan

2019

IJOP

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“…Originally, Agarwal and Tara [10] developed these states in the form of the Photon Added Coherent State (PACS), which depicts a remarkable non-classical property, including sub-Poissonian photon statistics and squeezing in a radiation field. The photonadded quantum states, e.g., even and odd coherent states, excited squeezed states, as well as excited thermal states, were examined [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Predication and Photon Statistics of a Three-Level System in the Photon Added Negative Binomial Distribution

et al. 2022

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Statistical and artificial neural network models are applied to forecast the quantum scheme of a three-level atomic system (3LAS) and field, initially following a photon added negative binomial distribution (PANBD). The Mandel parameter is used to detect the photon statistics of a radiation field. Explicit forms of the PANBD are given. The prediction of the Mandel parameter, atomic probability of the 3LAS in the upper state, and von Neumann entropy are obtained using time series and artificial neural network methods. The influence of probability success photons and the number of added photons to the NBD are examined. The total density matrix is used to compute and analyze the time evolution of the initial photonic negative binomial probability distribution that governs the 3LAS–field photon entanglement behavior. It is shown that the statistical quantities are strongly affected by probability success photons and the number of added photons to the NBD. Also, the prediction of quantum entropy is achieved by the time series and neural network.

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Quantum Extropy and Statistical Properties of the Radiation Field for Photonic Binomial and Even Binomial Distributions

et al. 2020

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Entanglement between atomic thermal states and coherent or squeezed photons in a damping cavity

Cited by 3 publications

References 42 publications

Characteristics of the Temporal Behavior of Entanglement between Photonic Binomial Distributions and a Two-Level Atom in a Damping Cavity

Characteristics of the Temporal Behavior of Entanglement between Photonic Binomial Distributions and a Two-Level Atom in a Damping Cavity

Predication and Photon Statistics of a Three-Level System in the Photon Added Negative Binomial Distribution

Quantum Extropy and Statistical Properties of the Radiation Field for Photonic Binomial and Even Binomial Distributions

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