Beats in Dicke superradiant emission
C Leonardi, Jie Peng, Alessandro Vaglica · Journal of Physics B Atomic and Molecular Physics · 1982
A quantum theory appropriate to describe the cooperative decay of an ensemble of sources having different resonance frequencies is applied to the superradiant emission of two equally populated groups of detuned sources. A set of two coupled equations is derived, which fully describe the behaviour of this system. Analytical or numerical solutions of these equations are presented as a function of the detuning and the differences between the quantum and the semiclassical behaviour are discussed.