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Survival of Entanglement in an Optical Parametric Oscillation from Decoherence
International Journal of Theoretical Physics ( IF 1.4 ) Pub Date : 2021-08-28 , DOI: 10.1007/s10773-021-04939-1
Desalegn Ayehu 1
Affiliation  

We consider a parametric oscillation driven by coherent light beams and coupled to a two-mode thermal reservoir. Applying the solutions of the quantum Langevin equations, we investigate the effect of decoherence and the driving coherent light beams on the squeezing and entanglement as well as statistical properties of the two-mode cavity radiation. We show that the two-mode thermal noise and the driving coherent light beams lead to an increase in the intensity of the cavity radiation. However, the driving coherent light beams do not have any effect on the squeezing and entanglement properties of the two-mode cavity radiation while the two-mode thermal noise leads to a decrease in the degree of squeezing and entanglement of the two-mode cavity radiation.



中文翻译:

来自去相干的光学参数振荡中纠缠的幸存

我们考虑由相干光束驱动并耦合到双模式热库的参数振荡。应用量子朗之万方程的解,我们研究了退相干和驱动相干光束对双模腔辐射的挤压和纠缠以及统计特性的影响。我们表明,双模热噪声和驱动相干光束导致腔辐射强度增加。然而,驱动相干光束对双模腔辐射的挤压和纠缠特性没有任何影响,而双模热噪声导致双模腔辐射的挤压和纠缠程度降低。 .

更新日期:2021-08-29
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