Dynamics Of Three-level Atom Pumped By Coherent Light And With Spontaneous Emission

In this research we have studied the squeezing and statistical properties of the cavityrnlight generated by a coherently driven three-level atom with an open cavity coupled torna two-mode vacuum reservoir via a single-port mirror. We carry out our calculationrnby putting the noise operators associated with the vacuum reservoir in normal order.rnEmploying the master equation and the quantum Langevin equations, we obtained thernequations of evolution of the expectation values of the atomic operators. Then applyingrnthe resulting solutions, we have calculated the mean photon number, variance of thernphoton number, and the quadrature variance for the single-modes cavity light as wellrnas the two-mode cavity light. Moreover, we have obtained the quadrature squeezing forrnthe two-mode cavity light. We have noticed that the mean photon number, the variancernof the photon number for light mode a, the variance of the photon number for the twomoderncavity light, and the quadrature variance of light mode a for = 0 is greater thanrnfor = 0.1. The quadrature variance of light mode b in the absence of spontaneousrnemission ( = 0) is less than in the presence of spontaneous emission ( = 0.1). Wernhave also found that the maximum quadrature squeezing of the two-mode cavity lightrnis 43.42% for both = 0 and = 0.1 below the vacuum-state level.

Get Full Work

Report copyright infringement or plagiarism