Tkach, M.V.; Pytiuk, O.Yu.; Voitsekhivska, O.M.; Seti, Ju.O.
(Condensed Matter Physics, 2018)
Theory of the spectrum of localized two-level quasi-particle renormalized due to interaction with polarization
phonons at cryogenic temperature is developed using the generalized method of Feynman-Pines diagram technique. ...