Explore a 44-minute conference talk from the Workshop on "Spectral Theory of Differential Operators in Quantum Theory" held at the Erwin Schrödinger International Institute for Mathematics and Physics (ESI). Delve into the analysis of polaron models, including the Fröhlich model, at zero total momentum. Discover the speaker's findings on the absence of excited eigenvalues below the essential spectrum at sufficiently weak coupling. Gain insights into advanced concepts in quantum theory and spectral analysis as presented by Robert Seiringer in this in-depth discussion of Fröhlich type polaron models.