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arXiv 2402.11366math.APmath-phmath.MP
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非聚焦非线性薛定谔方程带有势能的散射与局域态

Scattering and localized states for defocusing nonlinear Schrödinger equations with potential

Rutgers University(罗格斯大学)

Avy Soffer, Gavin Stewart

AI总结:

研究非聚焦非线性薛定谔方程带有势能的解的长时间行为,通过新的交互Morawetz估计证明解分解为自由波和弱局域部分,并分析其范数集中区域。

摘要:

我们研究了一维非线性薛定谔方程带有通用局域势能项和非聚焦非线性项的全局能量类(H^1)解的长时间行为。通过使用一种新的交互Morawetz估计,局部化到外部区域,我们证明这些解分解为自由波和一个弱局域部分,该部分渐近上与任何固定自由波正交。我们进一步显示该弱局域部分的L^2范数集中在|x| ≤ t^{1/2+}的区域,而能量(\dot{H}^1)范数集中在|x| ≤ t^{1/3+}的区域。我们的结果适用于初始数据任意大的解。

英文摘要:

We study the large-time behavior of global energy class ($H^1$) solutions of the one-dimensional nonlinear Schrödinger equation with a general localized potential term and a defocusing nonlinear term. By using a new type of interaction Morawetz estimate localized to an exterior region, we prove that these solutions decompose into a free wave and a weakly localized part which is asymptotically orthogonal to any fixed free wave. We further show that the $L^2$ norm of this weakly localized part is concentrated in the region $|x| \leq t^{1/2+}$, and that the energy ($\dot{H}^1$) norm is concentrated in $|x| \leq t^{1/3+}$. Our results hold for solutions with arbitrarily large initial 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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