Tkach, M.V.; Seti, Ju.O.; Voitsekhivska, O.M.; Pytiuk, O.Yu.
(Condensed Matter Physics, 2015)
The partial summing of infinite range of diagrams for the two-phonon mass operator of polaron described by Frohlich Hamiltonian is performed using the Feynman-Pines diagram technique. The renormalized spectral parameters ...