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Persistence of the spectral gap for the Landau-Pekar equations (2009.06430v1)
Published 14 Sep 2020 in math-ph and math.MP
Abstract: The Landau-Pekar equations describe the dynamics of a strongly coupled polaron. Here we provide a class of initial data for which the associated effective Hamiltonian has a uniform spectral gap for all times. For such initial data, this allows us to extend the results on the adiabatic theorem for the Landau-Pekar equations and their derivation from the Froehlich model obtained in [8, 7] to larger times.
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