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arXiv 2103.03794math.AP
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静态和动态,分数不确定性原理

Static and Dynamical, Fractional Uncertainty Principles

Sandeep Kumar, Felipe Ponce-Vanegas, Luis Vega

摘要:

我们研究了薛定谔方程的低正则解的色散过程。给出了分数权测不准原理的另一种证明,并利用它得到了质量集中的一个下界。我们还考虑了当初始数据是$\mathbb{R}$中的Dirac梳时的演化。在这种情况下,我们发现波动集中在合理的时间,这类似于一个Lévy过程的实现。此外,演化具有多重分形性。

英文摘要:

We study the process of dispersion of low-regularity solutions to the Schrödinger equation using fractional weights (observables). We give another proof of the uncertainty principle for fractional weights and use it to get a lower bound for the concentration of mass. We consider also the evolution when the initial datum is the Dirac comb in $\mathbb{R}$. In this case we find fluctuations that concentrate at rational times and that resemble a realization of a Lévy process. Furthermore, the evolution exhibits multifractality.

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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