arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2005.04978math.NAcs.NA
收藏

随机Manakov方程的指数积分

Exponential integrators for the stochastic Manakov equation

André Berg, David Cohen, Guillaume Dujardin

摘要:

本文提出并分析了随机Manakov方程的指数积分器,该方程是在研究随机双折射光纤中脉冲传输时产生的。我们首先证明了如果系统中的非线性项是全局Lipschitz连续的,则数值逼近的强阶是$1/2$。然后,我们利用这一事实证明了在光纤中相关的三次非线性耦合情况下,指数积分器具有依概率收敛阶$1/2$和几乎必然阶$1/2$。最后,我们提出了几个数值实验,以支持我们的理论研究结果,并说明指数积分器的效率,以及它的修改版本。

英文摘要:

This article presents and analyses an exponential integrator for the stochastic Manakov equation, a system arising in the study of pulse propagation in randomly birefringent optical fibers. We first prove that the strong order of the numerical approximation is $1/2$ if the nonlinear term in the system is globally Lipschitz-continuous. Then, we use this fact to prove that the exponential integrator has convergence order $1/2$ in probability and almost sure order $1/2$, in the case of the cubic nonlinear coupling which is relevant in optical fibers. Finally, we present several numerical experiments in order to support our theoretical findings and to illustrate the efficiency of the exponential integrator as well as a modified version of it.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑