Optimal parabolic upper bound for the energy-momentum relation of a strongly coupled polaron

We consider the large polaron described by the Fröhlich Hamiltonian and study its energy-momentum relation defined as the lowest possible energy as a function of the total momentum. Using a suitable family of trial states, we derive an optimal parabolic upper bound for the energy-momentum relation i...

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Bibliographic Details
Main Authors: David Mitrouskas, Krzysztof Myśliwy, Robert Seiringer
Format: Article
Language:English
Published: Cambridge University Press 2023-01-01
Series:Forum of Mathematics, Sigma
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2050509423000452/type/journal_article