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arXiv · 1406.4673

Local Extrema in Quantum Chaos

Florian Pausinger·Stefan Steinerberger
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Abstract

We numerically investigate the distribution of extrema of 'chaotic' Laplacian eigenfunctions on two-dimensional manifolds. Our contribution is two-fold: (a) we count extrema on grid graphs with a small number of randomly added edges and show the behavior to coincide with the 1957 prediction of Longuet-Higgins for the continuous case and (b) compute the regularity of their spatial distribution using \textit{discrepancy}, which is a classical measure from the theory of Monte Carlo integration. The first part suggests that grid graphs with randomly added edges should behave like two-dimensional surfaces with ergodic geodesic flow; in the second part we show that the extrema are more regularly distributed in space than the grid $\mathbb{Z}^2$.

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Florian Pausinger, Stefan Steinerberger. 2014-06-18. Local Extrema in Quantum Chaos. https://arxiv.org/abs/1406.4673

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