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arXiv 0802.1653nlin.PS
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非线性薛定谔晶格中离散暗孤子的稳定性

Stability of discrete dark solitons in nonlinear Schrodinger lattices

D. E. Pelinovsky, P. G. Kevrekidis

摘要:

在前人研究的基础上,得到了离散非线性薛定谔方程反连续极限分叉的离散暗孤子稳定性的新结果.我们从离散暗孤子的极限组态出发,导出了暗孤子稳定或不稳定的判据,并数值证实了这一判据。我们还开发了一些原型配置的相关特征值的详细计算,并获得了很好的协议的渐近预测与数值数据。

英文摘要:

We obtain new results on the stability of discrete dark solitons bifurcating from the anti-continuum limit of the discrete nonlinear Schrodinger equation, following the analysis of our previous paper [Physica D 212, 1-19 (2005)]. We derive a criterion for stability or instability of dark solitons from the limiting configuration of the discrete dark soliton and confirm this criterion numerically. We also develop detailed calculations of the relevant eigenvalues for a number of prototypical configurations and obtain very good agreement of asymptotic predictions with the numerical data.

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。

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