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Absence of excited eigenvalues for Fröhlich type polaron models at weak coupling (2210.17123v1)
Published 31 Oct 2022 in math-ph, cond-mat.mtrl-sci, math.MP, and math.SP
Abstract: We consider a class of polaron models, including the Fr\"ohlich model, at zero total momentum, and show that at sufficiently weak coupling there are no excited eigenvalues below the essential spectrum.
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