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arXiv 1509.07464math.AP
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非线性薛定谔方程:外磁场驱动的圆上的浓度

Nonlinear Schr{ö}dinger equation: concentration on circles driven by an external magnetic field

Denis Bonheure, Silvia Cingolani, Manon Nys

摘要:

本文研究了定态磁非线性薛定谔方程\begin{align}\label{eq:initialabstract}\left( i \hbar \nabla + A(x) \right)^2 u + V(x) u = |u|^{p-2} u, \quad x\in \mathbb{R}^{3},\end{align}的半经典极限,其中$p\textgreater{}2$,$A$是与给定磁场$B$相关联的矢量势,即$\nabla \times A =B$,$V$是非负的标量(电)势,它可以在原点奇异,在无穷远处或紧集外为零.我们假定$A$和$V$满足圆柱对称性.利用精细罚定理证明了模集中在圆上的上方程的半经典柱对称解的存在性,其模集中在圆上,如$\hbar \to 0$。我们强调的浓度是由磁势和电势驱动的。因此,我们的结果表明,在半经典极限,磁场也影响的位置的解决方案的$(\ref{eq:initialabstract})$,如果他们的浓度发生在一个轨迹,而不是一个单一的点。

英文摘要:

In this paper, we study the semiclassical limit for the stationary magnetic nonlinear Schrödinger equation \begin{align}\label{eq:initialabstract}\left( i \hbar \nabla + A(x) \right)^2 u + V(x) u = |u|^{p-2} u, \quad x\in \mathbb{R}^{3},\end{align}where $p\textgreater{}2$, $A$ is a vector potential associated to a given magnetic field $B$, i.e $\nabla \times A =B$ and $V$ is a nonnegative, scalar (electric) potential which can be singular at the origin and vanish at infinity or outside a compact set.We assume that $A$ and $V$ satisfy a cylindrical symmetry. By a refined penalization argument, we prove the existence of semiclassical cylindrically symmetric solutions of upper equation whose moduli concentrate, as $\hbar \to 0$, around a circle. We emphasize that the concentration is driven by the magnetic and the electric potentials. Our result thus shows that in the semiclassical limit, the magnetic field also influences the location of the solutions of $(\ref{eq:initialabstract})$ if their concentration occurs around a locus, not a single point.

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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