Quantum statistics and dynamics of nonlinear couplers with nonlinear exchange

Abdalla, M. Sebawe; El-Orany, Faisal A. A.; ina, Jan Pe

doi:10.1080/09500340008233405

Cited by 6 publications

(1 citation statement)

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“…It has been shown that the intracavity Kerr nonlinear coupler can produce macroscopically intense outputs with continuous variable entanglement [8]. Coupled χ (2) down conversion processes in the travelling wave configuration have also been examined theoretically, predicting that light produced in one of the media can be controlled by light entering into the other [9], and that such a device can produce entanglement of the output beams. It has been shown that two evanescently coupled χ (2) parametric down-converters inside a Fabry-Perot cavity can provide a tunable source of quadrature squeezed light, EPR correlations and quantum entanglement [10].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of entanglement in the nonlinear optical coupler by homodyne-mediated feedback

Ke¹,

Cheng²,

Zhang³

et al. 2007

J. Phys. B: At. Mol. Opt. Phys.

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Section: Introductionmentioning

confidence: 99%

Enhancement of entanglement in the nonlinear optical coupler by homodyne-mediated feedback

Ke¹,

Cheng²,

Zhang³

et al. 2007

J. Phys. B: At. Mol. Opt. Phys.

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Quantum Statistical Properties of the Codirectional Kerr Nonlinear Coupler in Terms of su 2 $\left (2\right ) $ Lie Group in Interaction with a Two-level Atom

2017

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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 Kerr nonlinear coupler in terms of su(2) Lie algebra. Under certain conditions we have adjusted the Kerr coupler and consequently we have managed to handle the problem. The wave function is obtained by using the evolution operator where the Heisnberg equation of motion is invoked to get the constants of the motion. We note that the Kerr parameter χ as well as the quantum number j plays the role of controlling the atomic inversion behavior. Also the maximum entanglement occurs after a short period of time when χ = 0. On the other hand for the entropy and the variance squeezing we observe that there is exchange between the quadrature variances. Furthermore, the variation in the quantum number j as well as in the parameter χ leads to increase or decrease in the number of fluctuations. Finally we examined the second order correlation function where classical and nonclassical phenomena are observed.

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Non-classical effect of quantum non-demolition measurement in presence of parametric amplification

Abdalla

Peřina

Křepelka

2009

Optics Communications

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Quantum statistics and dynamics of nonlinear couplers with nonlinear exchange

Cited by 6 publications

References 45 publications

Enhancement of entanglement in the nonlinear optical coupler by homodyne-mediated feedback

Enhancement of entanglement in the nonlinear optical coupler by homodyne-mediated feedback

Quantum Statistical Properties of the Codirectional Kerr Nonlinear Coupler in Terms of su 2 $\left (2\right ) $ Lie Group in Interaction with a Two-level Atom

Non-classical effect of quantum non-demolition measurement in presence of parametric amplification

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