参数激励磁光阱中噪声诱导的动态吸引子跃迁
Noise-induced Transition between Dynamic Attractors in the Parametrically Excited Magneto-optical Trap
摘要：
研究了在参量驱动磁光阱中产生的原子在双相空间和三相空间吸引子之间的噪声诱导跃迁。在不同的调制频率和振幅下测量的两个或三个动态吸引子之间的跃迁速率与理论计算和基于Langevin方程的蒙特卡罗模拟符合得很好。我们的实验可能是有用的研究非线性动力学问题，涉及远离平衡态之间的过渡。
英文摘要：
We have investigated noise-induced transition of atoms between double or triple phase-space attractors that are produced in the parametrically driven magneto-optical trap. The transition rates between two or three dynamic attractors, measured for various modulation frequencies and amplitudes, are in good agreement with theoretical calculations and Monte-Carlo simulations based on the Langevin equations. Our experiment may be useful to study nonlinear dynamic problems involving transitions between states far from equilibrium.
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