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arXiv 0904.0834math.APmath-phmath.MP
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具有缓变位势的Hartree方程的孤波

Solitary waves for the Hartree equation with a slowly varying potential

Kiril Datchev, Ivan Ventura

摘要:

本文研究了具有慢变光滑势$V(x) = W(hx)$的Hartree方程,其初始条件是$ε\le \sqrt h$在$H^1$中远离孤子.我们发现,直到时间$|\log h|/h$和错误的大小$ε+ h^2$在$H^1$,该解决方案是一个孤立子演化根据一个自然的有效哈密顿量的经典动力学。这个结果是基于Holmer-Zworski的方法,他们证明了Gross-Pitaevskii方程的类似定理,以及Lenzmann最近获得的线性化Hartree算子的谱估计。我们还将Holmer-Zworski的结果推广到更一般的初始条件。

英文摘要:

We study the Hartree equation with a slowly varying smooth potential, $V(x) = W(hx)$, and with an initial condition which is $ε\le \sqrt h$ away in $H^1$ from a soliton. We show that up to time $|\log h|/h$ and errors of size $ε+ h^2$ in $H^1$, the solution is a soliton evolving according to the classical dynamics of a natural effective Hamiltonian. This result is based on methods of Holmer-Zworski, who prove a similar theorem for the Gross-Pitaevskii equation, and on spectral estimates for the linearized Hartree operator recently obtained by Lenzmann. We also provide an extension of the result of Holmer-Zworski to more general inital conditions.

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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