Hakioğlu, TuğrulShumovsky, Alexander S.Hakioğlu, Tuğrul2019-05-032019-05-0319979789048147977http://hdl.handle.net/11693/51094The Dicke model is examined in the limit of large number of atoms and /or large number of excitations. Superfluous instabilities arising from the rotating wave approximation is examined and counterrotating terms are shown to be crucial for the correct dynamical evolution in these limits.EnglishPhoton numberRotate wave approximationRevival periodAtomic population inversionMode resonant radiationInteraction of two-level atomic system with a single-mode radiation fieldBook Chapter10.1007/978-94-015-8796-9_79789401587969