2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138763I analyse our present understanding of the Froehlich polaron with emphasis on the response properties, in particular optical absorption.28 pages, 17 figures, invited lecture at the ESF Exploratory Workshop EW05-105 "Mott's Physics in Nanowires and Quantum Dots", University of Cambridge, United Kingdom, 31 July - 2 August 2006Mesoscale and Nanoscale Physicstext