论文标题

Toeplitz操作员的禁区中的分数指数衰减

Fractional exponential decay in the forbidden region for Toeplitz operators

论文作者

Deleporte, Alix

论文摘要

我们证明了toeplitz量化中本征素器浓度的几个结果。有了对规律性的轻度假设,我们证明eigenfunctions是$ o(exp(-cn^δ))$远离符号的相应级别集,其中n是反向半经典参数,$ 0 <Δ<1 $取决于规律性。作为一种应用,我们证明了在高温下自旋系统的自由能的精确绑定,从而使LIEB的结果锐化。

We prove several results of concentration for eigenfunctions in Toeplitz quantization. With mild assumptions on the regularity, we prove that eigenfunctions are $O(exp(-cN^δ))$ away from the corresponding level set of the symbol, where N is the inverse semiclassical parameter and $0 < δ< 1$ depends on the regularity. As an application, we prove a precise bound for the free energy of spin systems at high temperatures, sharpening a result of Lieb.

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