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A NUMERICAL PROCEDURE FOR SOLITON GENERATION

机译:孤子生成的数值程序

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摘要

We present a simple method for obtaining stationary solutions to the perturbed nonlinear Schrodinger equation from a random input field. In particular, we propagate the initial field while both renormalizing to ensure that the maximum field value remains constant and absorbing the field at increasingly large distances from the centre of the computational window in position and wavevector space. Our algorithm, which results in near-perfect lowest-order solitons for a wide range of absorber and computational parameters, should be equally applicable to other nonlinear equations. References: 7
机译:我们提出了一种从随机输入场获得扰动非线性薛定谔方程的稳态解的简单方法。特别是,我们在传播初始场的同时,既要重新归一化以确保最大场值保持不变,又要在位置和波矢量空间中距离计算窗口中心越来越远的距离吸收场。我们的算法在广泛的吸收器和计算参数下产生了近乎完美的低阶孤子,应该同样适用于其他非线性方程。[参考文献: 7]

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