# Divergence of the effective mass of a polaron in the strong coupling limit

## TL;DR

This paper demonstrates that in the strong coupling limit, the effective mass of a polaron described by the Fröhlich model becomes infinite, highlighting a fundamental aspect of polaron physics.

## Contribution

It provides a rigorous analysis showing the divergence of the polaron's effective mass in the strong coupling regime within the Fröhlich model.

## Key findings

- Effective mass diverges at strong coupling
- Supports theoretical predictions of mass divergence
- Clarifies behavior of polarons in extreme regimes

## Abstract

We consider the Fr\"ohlich model of a polaron, and show that its effective mass diverges in the strong coupling limit.