求解对数非线性薛定谔方程的线性化隐含方案

Anees Al-Harbi, Waleed M. Al-Hamdan, L. Wazzan
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引用次数: 0

摘要

在本研究中,我们将开发一种使用线性化隐式格式求解非线性对数Schrödinger方程的数值格式,该格式在空间和时间上具有二阶精度,并且大大节省了计算时间。然后,我们将结果与以前使用有限差分法的Crank-Nicolson格式获得的结果进行比较。在实际应用前,将对该方法的稳定性和精密度进行评估。将用精确解和守恒量来证明所提出方法的有效性和可靠性。此外,进行测试以探索两个和三个孤子之间发生的相互作用。我们的研究结果表明,相互作用的行为是弹性的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Linearized Implicit Scheme for Solving Logarithmic Nonlinear Schrödinger’s Equation
In this research, we will develop a numerical scheme for solving the nonlinear logarithmic Schrödinger’s equation using the Linearized implicit scheme, that has second-order accuracy in space and time, with significant savings in computational time. We then compare the results to those obtained previously using the Crank-Nicolson scheme of the finite difference method. The stability and precision of this method will be evaluated before it is implemented. Precise solution and conserved quantities will be used to prove the efficiency as well as reliability of the method that has been proposed. Additionally, tests are conducted to explore the interactions that take place between two and three solitons. The numerical findings of our investigation demonstrated that the behavior of interactions is elastic.
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