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51.
噪声之间的耦合对一维激光场的影响 总被引:5,自引:2,他引:3
本文从理论上对加性噪声和倍增噪声之间有耦合作用的一维激光模型进行了分析,求出定态时激光强度分布函数的解析形式.同噪声之间不存在耦合的激光模型相比较,噪声之间的耦合增强了激光强度的涨落. 相似文献
52.
Synchronization of Kuramoto phase oscillators arranged in real complex neural networks is investigated. It is shown that the synchronization greatly depends on the sets of natural frequencies of the involved oscillators. The influence of network connectivity heterogeneity on synchronization depends particularly on the correlation between natural frequencies and node degrees. This finding implies a potential application that inhibiting the effects caused by the changes of network structure can be bManced out nicely by choosing the correlation parameter appropriately. 相似文献
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电路量子电动力学的实验实现了光与人造原子的超强耦合相互作用, 相互作用强度与光场频率在同一个数量级.在超强耦合区域, 著名的旋波近似失效, 因此系统的动力学必须用含有反旋波项的Rabi模型描述.本文研究Rabi模型中的光场压缩.数值模拟结果发现, 光场压缩不是随耦合强度线性增加, 而是在合适的超强区域获得最大值.同时, 我们还发现, 较小的反旋波项有助于提高光场压缩.所得结果有利于实验上在超强区域中制备所需的压缩态.
关键词:
Rabi模型
超强耦合
光场压缩 相似文献
54.
In this paper, the light pressure force in low and high intensity laser fields is derived. The exact numerical results of forces Fn∥(n=0,1,2,3,4,5,6…) through the matrix continued fraction method are presented. At low intensity field (G=1), the spatially averaged force F0∥ gives a cooling effect at the negative detuning. At high intensity (G=64), the effects of the forces with higher order (n≥2) appear and the contributes of the forces with odd or even order are opposite. It is great different from no high order force at low intensity. 相似文献
55.
染料激光瞬态过程中的噪声 总被引:1,自引:1,他引:0
本文用首次通过时间的方法来分析染料激光瞬态的统计性质.提出了单模染料激光的理论模型,用白噪声简化泵浦涨落,通过福克-曾朗克方程求出首次通过时间分布的平均值、方差和偏斜度的解析解.与实验数据和用蒙特卡罗模拟获得的曲线相比较,解析解的结果与实验测量和数值计算符合得很好. 相似文献
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A homogeneously broadened two-mode laser system with multiplicative coloured noise is investigated when the mode coupling constant ξ=2. An analytical result is obtained when two-dimensional decoupling theory is applied to the system. The intensity auto-correlation function and effective eigenvalue of the laser system are calculated when the difference of pump parameters, multiplicative noise strength and noise correlation time are varied. It is shown that the multiplicative noise can enhance the fluctuations while the noise colour can reduce the fluctuations in the laser system. 相似文献
59.
General synchronization of the chaotic intensity fluctuations of two spatially coupled Nd:YAG lasers with pump modulation is investigated theoretically when the losses of the two lasers are different. It is shown that the chaotic synchronization still exists for medium coupling even though the two lasers are different. For strong coupling the system shows periodic motion of laser intensities. While for weak coupling, the two lasers oscillate independently. It is obvious that the increase of difference between the two lasers reduces the degree of chaotic synchronization. 相似文献
60.
用一椎近似的方法求得了同时存在倍增噪声和饱和效应的双向环形激光场含时几率密度函数,讨论了倍增噪声和饱和效应对表征激光场动力学性质的两个重要物理量--光场强度相关时间和有效本征值的影响。 相似文献