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arxiv: 1211.3506 · v1 · pith:PCW753VAnew · submitted 2012-11-15 · 🧮 math.PR · cond-mat.stat-mech

Rigidity and Tolerance in Gaussian zeroes and Ginibre eigenvalues: quantitative estimates

classification 🧮 math.PR cond-mat.stat-mech
keywords conditionalpointscitedensitydistributiongaussianginibrelebesgue
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Let $\Pi$ be a translation invariant point process on the complex plane $\C$ and let $\D \subset \C$ be a bounded open set whose boundary has zero Lebesgue measure. We study the conditional distribution of the points of $\Pi$ inside $\D$ given the points outside $\D$. When $\Pi$ is the Ginibre ensemble or the Gaussian zero process, it been shown in \cite{GP} that this conditional distribution is mutually absolutely continuous with the Lebesgue measure on its support. In this paper, we refine the result in \cite{GP} to show that the conditional density is, roughly speaking, comparable to a squared Vandermonde density. In particular, this shows that even under spatial conditioning, the points exhibit repulsion which is quadratic in their mutual separation.

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