Kassahun, Fesseha (PhD)Terefe, Yosef2018-07-102023-11-092018-07-102023-11-092013-06http://10.90.10.223:4000/handle/123456789/7567We analyze the squeezing and statistical properties of a degenerate three-level atom coupled to a coherent light and vacuum reservoir. In the other way, employ- ing the Heseinberg and Quantum Langevin equation associated with the normal ordering noise operator, we study the squeezing properties, power spectrum, vari- ance and also calculate the mean photon number of the cavity mode. It turns out that the generated light exhibits squeezing under certain conditionsenThree-Level AtomThesis