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Main Author: Gautier, Raphaël
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2509.20033
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author Gautier, Raphaël
author_facet Gautier, Raphaël
contents We define and study the global well-posedness of a classical polaron dynamics and its derivation from the quantum dynamics of the Fröhlich Hamiltonian from the viewpoint of Wigner measures. We make a crucial use of the Gross transform, allowing us to extract a diverging constant. Finally, we discuss the difficulty of defining the classical dynamics when removing the cutoff in our setting.
format Preprint
id arxiv_https___arxiv_org_abs_2509_20033
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Semiclassical limit of polaron dynamics with cutoff
Gautier, Raphaël
Mathematical Physics
We define and study the global well-posedness of a classical polaron dynamics and its derivation from the quantum dynamics of the Fröhlich Hamiltonian from the viewpoint of Wigner measures. We make a crucial use of the Gross transform, allowing us to extract a diverging constant. Finally, we discuss the difficulty of defining the classical dynamics when removing the cutoff in our setting.
title Semiclassical limit of polaron dynamics with cutoff
topic Mathematical Physics
url https://arxiv.org/abs/2509.20033