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arXiv 2210.10596math-phmath.APmath.MPmath.SP
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具有锥形衰减的薛定谔算子的散射

Scattering for Schrödinger operators with conical decay

Adam Black, Tal Malinovitch

AI总结:

本文将短程散射从势沿所有射线衰减推广到仅沿一族射线锥形衰减的情形,证明态可分解为渐近自由部分与可能长时间相互作用部分,并给出散射态的微局部及纯空间刻画。

摘要:

我们研究薛定谔算子的散射性质,其势在 $\bR^d$ 中沿一族射线具有短程衰减。这推广了经典的短程散射框架,在该框架中势被假定沿所有射线衰减。对于这些算子,我们证明任何态都分解为一个渐近自由部分和一个可能与势长时间相互作用的部分。我们利用动力学给出了散射态的微局部刻画,并对其补集给出了相应的描述。我们还证明,在某些情形下,这些刻画可以是纯空间的。

英文摘要:

We study the scattering properties of Schrödinger operators with potentials that have short-range decay along a collection of rays in $\bbR^d$. This generalizes the classical setting of short-range scattering in which the potential is assumed to decay along \emph{all} rays. For these operators, we show that any state decomposes into an asymptotically free piece and a piece which may interact with the potential for long times. We give a microlocal characterization of the scattering states in terms of the dynamics and a corresponding description of their complement. We also show that in certain cases these characterizations can be purely spatial.

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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