Abstract
In this article, the interaction between two Λ-type three-level atoms and a single-mode cavity field is discussed. The damping parameter is taken into account. Also, the field and the atoms are assumed to be coupled with modulated coupling parameter which depends explicitly on time. Even though the system seems complicated, the analytical form of the wave function and the probability amplitudes are exactly obtained. To comprehend the degree of entanglement between subsystems (field-atom and atom-atom), the dynamics of entanglement through various measures, namely, concurrence and negativity is evaluated. Also, the Mandel parameter and normal squeezing of the resultant state have been calculated. In each case, the influences of damping parameter on the above criteria are numerically analyzed, in detail. It is illustrated that the degree of entanglement can be generated by taking the evolved parameters, appropriately.
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