Asymptotic series for low-energy excitations of the Fr\"ohlich Polaron at strong coupling
We consider the confined Fr\"ohlich polaron and establish an asymptotic series for the low-energy eigenvalues in negative powers of the coupling constant. The coefficients of the series are derived through a two-fold perturbation approach, involving expansions around the electron Pekar minimize...
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Zusammenfassung: | We consider the confined Fr\"ohlich polaron and establish an asymptotic
series for the low-energy eigenvalues in negative powers of the coupling
constant. The coefficients of the series are derived through a two-fold
perturbation approach, involving expansions around the electron Pekar minimizer
and the excitations of the quantum field. |
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DOI: | 10.48550/arxiv.2306.16373 |