Atomic emission spectra and field non-classical properties
Tang Pei, Guo Hong · Chinese Physics B · 2009
This paper studies the interaction of a Λ-type three-level atom with a single mode field. It discusses the emission spectrum characteristics of the Λ-type three-level atom driven by the photon-added coherent field. By means of the second-order degree of coherence, it shows some nonclassical properties of the cavity field, such as sub-Poissonian photon-number distribution and the two-time intensity–intensity correlation which violates the Cauchy–Schwarz inequality.