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arXiv · 2608.26365

A complex-analytic proof of square-restricted stable phase retrieval in Fock space

Cynthia Bortolotto·João P. G. Ramos
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Abstract

We give a short complex-analytic proof of a square-restricted form of local stable phase retrieval at the Gaussian in one-dimensional Fock space. The main estimate is a coercivity inequality for the map $F\mapsto F^2$: \[ \|F^2-F(0)^2|_{\mathcal{F}^2(\mathbb{C})} \lesssim \inf_{c\in\mathbb{R}}\||F|^2-c\|_{L^2(d \gamma)}. \] The proof uses a weighted derivative norm, two integrations by parts, and a weighted Cauchy inequality. The proof has been completely verified in Lean with the aid of Large Language Models.

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Cynthia Bortolotto, João P. G. Ramos. 2026-08-26. A complex-analytic proof of square-restricted stable phase retrieval in Fock space. https://arxiv.org/abs/2608.26365

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