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Effect of Phase Fluctuations and Dephasing on the Dynamics of Correlated Photons from a Nondegenerate Three-Level Cascade Laser
Journal of Russian Laser Research ( IF 0.9 ) Pub Date : 2021-05-01 , DOI: 10.1007/s10946-021-09959-0
Tamirat Abebe

In this paper, we present a detailed analysis of the dynamics of the cavity radiation of a coherentlypumped correlated-emission laser. We find that the phase fluctuations and dephasing significantly affect the two-mode squeezing, entanglement, and the radiation intensity. The results obtained show that almost perfectly entangled light can be generated while the rate of dephasing and phase fluctuations are kept high in the case, where the atoms are initially prepared in a possible maximum coherence. Although we find that varying the phase fluctuations and dephasing enhances the degrees of squeezing. Since the intensity and quantum features can be readily enhanced, this system is expected to be a viable source of a strong robust entangled and squeezed light under various conditions. In addition, we show that the Mandel Q-factor for this system is definitely greater than zero. This ensures that the radiation generated demonstrates super-Poissonian photon statistics, while exhibiting nonclassical properties such as squeezing and entanglement. Detailed analysis shows that this behavior would not be affected in an essential way by changing the rate of dephasing and phase fluctuations.



中文翻译:

相位起伏和移相对非简并三能级联激光器相关光子动力学的影响

在本文中,我们对相干泵浦相关发射激光器的腔辐射动力学进行了详细分析。我们发现,相位波动和相移会显着影响双模压缩,纠缠和辐射强度。所获得的结果表明,在最初以可能的最大相干性制备原子的情况下,在保持较高的移相速率和相位波动的同时,可以生成几乎完美纠缠的光。尽管我们发现改变相位波动和去相位会增强压缩程度。由于可以轻松增强强度和量子特征,因此该系统有望在各种条件下成为强健的纠缠和压缩光的可行光源。此外,我们证明了Mandel Q系统的系数肯定大于零。这样可以确保产生的辐射展示出超泊松光子统计数据,同时展现出非经典特性,例如压缩和纠缠。详细分析表明,通过改变移相速率和相位波动,该行为不会受到本质上的影响。

更新日期:2021-05-02
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